Home / 189,455.78-261,449-104,572.87

Finding the Fourth Proportional to 189,455.78, 261,449 and 104,572.87

Calculator

Solution

The fourth proportional to 189,455.78, 261,449 and 104,572.87 is: 144,310.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,455.78 : 261,449 = 104,572.87 : x
  2. Step 2: Convert to fraction form
    189,455.78/261,449 = 104,572.87/x
  3. Step 3: Cross multiply
    189,455.78x = 261,449 × 104,572.87
  4. Step 4: Simplify right side
    189,455.78x = 27,340,470,981.39
  5. Step 5: Solve for x
    x = 27,340,470,981.39/189,455.78
  6. Step 6: Final answer
    x = 144,310.57

Related Problems

Find fourth proportional to 94,727.89, 130,724.50 and 52,286.43
Half scale
Find fourth proportional to 378,911.56, 522,898 and 209,145.73
Double scale
Find fourth proportional to 189,456.78, 261,450.38 and 104,573.87
Similar ratio
Find fourth proportional to 284,183.67, 392,173.50 and 156,859.30
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.