Home / 132,498.18-182,787.18-78,752.66

Finding the Fourth Proportional to 132,498.18, 182,787.18 and 78,752.66

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Solution

The fourth proportional to 132,498.18, 182,787.18 and 78,752.66 is: 108,642.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,498.18 : 182,787.18 = 78,752.66 : x
  2. Step 2: Convert to fraction form
    132,498.18/182,787.18 = 78,752.66/x
  3. Step 3: Cross multiply
    132,498.18x = 182,787.18 × 78,752.66
  4. Step 4: Simplify right side
    132,498.18x = 14,394,975,872.62
  5. Step 5: Solve for x
    x = 14,394,975,872.62/132,498.18
  6. Step 6: Final answer
    x = 108,642.82

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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.