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Finding the Fourth Proportional to 99,658.60, 137,494.34 and 63,868.32

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Solution

The fourth proportional to 99,658.60, 137,494.34 and 63,868.32 is: 88,116.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,658.60 : 137,494.34 = 63,868.32 : x
  2. Step 2: Convert to fraction form
    99,658.60/137,494.34 = 63,868.32/x
  3. Step 3: Cross multiply
    99,658.60x = 137,494.34 × 63,868.32
  4. Step 4: Simplify right side
    99,658.60x = 8,781,532,505.31
  5. Step 5: Solve for x
    x = 8,781,532,505.31/99,658.60
  6. Step 6: Final answer
    x = 88,116.15

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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.