Home / 130,121.68-179,563.24-73,531.84

Finding the Fourth Proportional to 130,121.68, 179,563.24 and 73,531.84

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Solution

The fourth proportional to 130,121.68, 179,563.24 and 73,531.84 is: 101,471.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,121.68 : 179,563.24 = 73,531.84 : x
  2. Step 2: Convert to fraction form
    130,121.68/179,563.24 = 73,531.84/x
  3. Step 3: Cross multiply
    130,121.68x = 179,563.24 × 73,531.84
  4. Step 4: Simplify right side
    130,121.68x = 13,203,615,433.56
  5. Step 5: Solve for x
    x = 13,203,615,433.56/130,121.68
  6. Step 6: Final answer
    x = 101,471.30

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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.