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Finding the Fourth Proportional to 138,001.30, 207,001.95 and 95,792.20

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Solution

The fourth proportional to 138,001.30, 207,001.95 and 95,792.20 is: 143,688.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,001.30 : 207,001.95 = 95,792.20 : x
  2. Step 2: Convert to fraction form
    138,001.30/207,001.95 = 95,792.20/x
  3. Step 3: Cross multiply
    138,001.30x = 207,001.95 × 95,792.20
  4. Step 4: Simplify right side
    138,001.30x = 19,829,172,194.79
  5. Step 5: Solve for x
    x = 19,829,172,194.79/138,001.30
  6. Step 6: Final answer
    x = 143,688.30

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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.