Home / 147.92-204.14-89.69

Finding the Fourth Proportional to 147.92, 204.14 and 89.69

Calculator

Solution

The fourth proportional to 147.92, 204.14 and 89.69 is: 123.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    147.92 : 204.14 = 89.69 : x
  2. Step 2: Convert to fraction form
    147.92/204.14 = 89.69/x
  3. Step 3: Cross multiply
    147.92x = 204.14 × 89.69
  4. Step 4: Simplify right side
    147.92x = 18,309.32
  5. Step 5: Solve for x
    x = 18,309.32/147.92
  6. Step 6: Final answer
    x = 123.78

Related Problems

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.