Home / 129,354.41-178,514.24-71,996.13

Finding the Fourth Proportional to 129,354.41, 178,514.24 and 71,996.13

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Solution

The fourth proportional to 129,354.41, 178,514.24 and 71,996.13 is: 99,357.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,354.41 : 178,514.24 = 71,996.13 : x
  2. Step 2: Convert to fraction form
    129,354.41/178,514.24 = 71,996.13/x
  3. Step 3: Cross multiply
    129,354.41x = 178,514.24 × 71,996.13
  4. Step 4: Simplify right side
    129,354.41x = 12,852,334,069.91
  5. Step 5: Solve for x
    x = 12,852,334,069.91/129,354.41
  6. Step 6: Final answer
    x = 99,357.52

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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.