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Finding the Fourth Proportional to 99,833.71, 137,750.43 and 63,549.76

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Solution

The fourth proportional to 99,833.71, 137,750.43 and 63,549.76 is: 87,685.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,833.71 : 137,750.43 = 63,549.76 : x
  2. Step 2: Convert to fraction form
    99,833.71/137,750.43 = 63,549.76/x
  3. Step 3: Cross multiply
    99,833.71x = 137,750.43 × 63,549.76
  4. Step 4: Simplify right side
    99,833.71x = 8,754,006,766.40
  5. Step 5: Solve for x
    x = 8,754,006,766.40/99,833.71
  6. Step 6: Final answer
    x = 87,685.88

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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.