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Finding the Fourth Proportional to 157,084.71, 216,760.41 and 89,079.95

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Solution

The fourth proportional to 157,084.71, 216,760.41 and 89,079.95 is: 122,920.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,084.71 : 216,760.41 = 89,079.95 : x
  2. Step 2: Convert to fraction form
    157,084.71/216,760.41 = 89,079.95/x
  3. Step 3: Cross multiply
    157,084.71x = 216,760.41 × 89,079.95
  4. Step 4: Simplify right side
    157,084.71x = 19,309,005,400.98
  5. Step 5: Solve for x
    x = 19,309,005,400.98/157,084.71
  6. Step 6: Final answer
    x = 122,920.97

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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.