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Finding the Fourth Proportional to 132,478.83, 198,670.17 and 72,551.84

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Solution

The fourth proportional to 132,478.83, 198,670.17 and 72,551.84 is: 108,801.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,478.83 : 198,670.17 = 72,551.84 : x
  2. Step 2: Convert to fraction form
    132,478.83/198,670.17 = 72,551.84/x
  3. Step 3: Cross multiply
    132,478.83x = 198,670.17 × 72,551.84
  4. Step 4: Simplify right side
    132,478.83x = 14,413,885,665.33
  5. Step 5: Solve for x
    x = 14,413,885,665.33/132,478.83
  6. Step 6: Final answer
    x = 108,801.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.