Home / 132,432.94-182,781.66-78,748.60

Finding the Fourth Proportional to 132,432.94, 182,781.66 and 78,748.60

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Solution

The fourth proportional to 132,432.94, 182,781.66 and 78,748.60 is: 108,687.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,432.94 : 182,781.66 = 78,748.60 : x
  2. Step 2: Convert to fraction form
    132,432.94/182,781.66 = 78,748.60/x
  3. Step 3: Cross multiply
    132,432.94x = 182,781.66 × 78,748.60
  4. Step 4: Simplify right side
    132,432.94x = 14,393,799,830.68
  5. Step 5: Solve for x
    x = 14,393,799,830.68/132,432.94
  6. Step 6: Final answer
    x = 108,687.46

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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.