Home / 129,397.24-178,532.58-75,695.32

Finding the Fourth Proportional to 129,397.24, 178,532.58 and 75,695.32

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Solution

The fourth proportional to 129,397.24, 178,532.58 and 75,695.32 is: 104,438.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,397.24 : 178,532.58 = 75,695.32 : x
  2. Step 2: Convert to fraction form
    129,397.24/178,532.58 = 75,695.32/x
  3. Step 3: Cross multiply
    129,397.24x = 178,532.58 × 75,695.32
  4. Step 4: Simplify right side
    129,397.24x = 13,514,080,773.53
  5. Step 5: Solve for x
    x = 13,514,080,773.53/129,397.24
  6. Step 6: Final answer
    x = 104,438.71

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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.