Home / 121,814.20-182,721.30-88,377.40

Finding the Fourth Proportional to 121,814.20, 182,721.30 and 88,377.40

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Solution

The fourth proportional to 121,814.20, 182,721.30 and 88,377.40 is: 132,566.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,814.20 : 182,721.30 = 88,377.40 : x
  2. Step 2: Convert to fraction form
    121,814.20/182,721.30 = 88,377.40/x
  3. Step 3: Cross multiply
    121,814.20x = 182,721.30 × 88,377.40
  4. Step 4: Simplify right side
    121,814.20x = 16,148,433,418.62
  5. Step 5: Solve for x
    x = 16,148,433,418.62/121,814.20
  6. Step 6: Final answer
    x = 132,566.10

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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.