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Finding the Fourth Proportional to 123,375.70, 185,149.95 and 53,305.30

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Solution

The fourth proportional to 123,375.70, 185,149.95 and 53,305.30 is: 79,995.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,375.70 : 185,149.95 = 53,305.30 : x
  2. Step 2: Convert to fraction form
    123,375.70/185,149.95 = 53,305.30/x
  3. Step 3: Cross multiply
    123,375.70x = 185,149.95 × 53,305.30
  4. Step 4: Simplify right side
    123,375.70x = 9,869,473,629.74
  5. Step 5: Solve for x
    x = 9,869,473,629.74/123,375.70
  6. Step 6: Final answer
    x = 79,995.28

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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.