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Finding the Fourth Proportional to 159,062.39, 219,510.30 and 86,470.17

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Solution

The fourth proportional to 159,062.39, 219,510.30 and 86,470.17 is: 119,331.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,062.39 : 219,510.30 = 86,470.17 : x
  2. Step 2: Convert to fraction form
    159,062.39/219,510.30 = 86,470.17/x
  3. Step 3: Cross multiply
    159,062.39x = 219,510.30 × 86,470.17
  4. Step 4: Simplify right side
    159,062.39x = 18,981,092,957.75
  5. Step 5: Solve for x
    x = 18,981,092,957.75/159,062.39
  6. Step 6: Final answer
    x = 119,331.12

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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.