Home / 131,705.52-181,753.92-74,357.28

Finding the Fourth Proportional to 131,705.52, 181,753.92 and 74,357.28

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Solution

The fourth proportional to 131,705.52, 181,753.92 and 74,357.28 is: 102,613.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,705.52 : 181,753.92 = 74,357.28 : x
  2. Step 2: Convert to fraction form
    131,705.52/181,753.92 = 74,357.28/x
  3. Step 3: Cross multiply
    131,705.52x = 181,753.92 × 74,357.28
  4. Step 4: Simplify right side
    131,705.52x = 13,514,727,120.54
  5. Step 5: Solve for x
    x = 13,514,727,120.54/131,705.52
  6. Step 6: Final answer
    x = 102,613.22

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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.