Home / 83,234.91-125,123.04-66,775.02

Finding the Fourth Proportional to 83,234.91, 125,123.04 and 66,775.02

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Solution

The fourth proportional to 83,234.91, 125,123.04 and 66,775.02 is: 100,379.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,234.91 : 125,123.04 = 66,775.02 : x
  2. Step 2: Convert to fraction form
    83,234.91/125,123.04 = 66,775.02/x
  3. Step 3: Cross multiply
    83,234.91x = 125,123.04 × 66,775.02
  4. Step 4: Simplify right side
    83,234.91x = 8,355,093,498.46
  5. Step 5: Solve for x
    x = 8,355,093,498.46/83,234.91
  6. Step 6: Final answer
    x = 100,379.68

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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.