Home / 316,129.32-474,252.49-100,042.46

Finding the Fourth Proportional to 316,129.32, 474,252.49 and 100,042.46

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Solution

The fourth proportional to 316,129.32, 474,252.49 and 100,042.46 is: 150,082.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,129.32 : 474,252.49 = 100,042.46 : x
  2. Step 2: Convert to fraction form
    316,129.32/474,252.49 = 100,042.46/x
  3. Step 3: Cross multiply
    316,129.32x = 474,252.49 × 100,042.46
  4. Step 4: Simplify right side
    316,129.32x = 47,445,387,397.89
  5. Step 5: Solve for x
    x = 47,445,387,397.89/316,129.32
  6. Step 6: Final answer
    x = 150,082.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.