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Finding the Fourth Proportional to 123,376.70, 185,151.45 and 53,306.30

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Solution

The fourth proportional to 123,376.70, 185,151.45 and 53,306.30 is: 79,996.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,376.70 : 185,151.45 = 53,306.30 : x
  2. Step 2: Convert to fraction form
    123,376.70/185,151.45 = 53,306.30/x
  3. Step 3: Cross multiply
    123,376.70x = 185,151.45 × 53,306.30
  4. Step 4: Simplify right side
    123,376.70x = 9,869,738,739.14
  5. Step 5: Solve for x
    x = 9,869,738,739.14/123,376.70
  6. Step 6: Final answer
    x = 79,996.78

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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.