Home / 132,499.18-182,788.56-78,753.66

Finding the Fourth Proportional to 132,499.18, 182,788.56 and 78,753.66

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Solution

The fourth proportional to 132,499.18, 182,788.56 and 78,753.66 is: 108,644.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,499.18 : 182,788.56 = 78,753.66 : x
  2. Step 2: Convert to fraction form
    132,499.18/182,788.56 = 78,753.66/x
  3. Step 3: Cross multiply
    132,499.18x = 182,788.56 × 78,753.66
  4. Step 4: Simplify right side
    132,499.18x = 14,395,268,106.13
  5. Step 5: Solve for x
    x = 14,395,268,106.13/132,499.18
  6. Step 6: Final answer
    x = 108,644.21

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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.