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Finding the Fourth Proportional to 99,832.71, 137,749.05 and 63,548.76

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Solution

The fourth proportional to 99,832.71, 137,749.05 and 63,548.76 is: 87,684.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,832.71 : 137,749.05 = 63,548.76 : x
  2. Step 2: Convert to fraction form
    99,832.71/137,749.05 = 63,548.76/x
  3. Step 3: Cross multiply
    99,832.71x = 137,749.05 × 63,548.76
  4. Step 4: Simplify right side
    99,832.71x = 8,753,781,318.68
  5. Step 5: Solve for x
    x = 8,753,781,318.68/99,832.71
  6. Step 6: Final answer
    x = 87,684.50

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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.