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Finding the Fourth Proportional to 138,251.80, 207,377.70 and 96,042.70

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Solution

The fourth proportional to 138,251.80, 207,377.70 and 96,042.70 is: 144,064.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,251.80 : 207,377.70 = 96,042.70 : x
  2. Step 2: Convert to fraction form
    138,251.80/207,377.70 = 96,042.70/x
  3. Step 3: Cross multiply
    138,251.80x = 207,377.70 × 96,042.70
  4. Step 4: Simplify right side
    138,251.80x = 19,917,114,227.79
  5. Step 5: Solve for x
    x = 19,917,114,227.79/138,251.80
  6. Step 6: Final answer
    x = 144,064.05

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1.5x scale

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.