Home / 134,613.45-185,767.85-74,186.31

Finding the Fourth Proportional to 134,613.45, 185,767.85 and 74,186.31

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Solution

The fourth proportional to 134,613.45, 185,767.85 and 74,186.31 is: 102,377.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,613.45 : 185,767.85 = 74,186.31 : x
  2. Step 2: Convert to fraction form
    134,613.45/185,767.85 = 74,186.31/x
  3. Step 3: Cross multiply
    134,613.45x = 185,767.85 × 74,186.31
  4. Step 4: Simplify right side
    134,613.45x = 13,781,430,937.20
  5. Step 5: Solve for x
    x = 13,781,430,937.20/134,613.45
  6. Step 6: Final answer
    x = 102,377.82

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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.