Home / 123,531.30-185,592.20-79,244.55

Finding the Fourth Proportional to 123,531.30, 185,592.20 and 79,244.55

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Solution

The fourth proportional to 123,531.30, 185,592.20 and 79,244.55 is: 119,056.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,531.30 : 185,592.20 = 79,244.55 : x
  2. Step 2: Convert to fraction form
    123,531.30/185,592.20 = 79,244.55/x
  3. Step 3: Cross multiply
    123,531.30x = 185,592.20 × 79,244.55
  4. Step 4: Simplify right side
    123,531.30x = 14,707,169,976.29
  5. Step 5: Solve for x
    x = 14,707,169,976.29/123,531.30
  6. Step 6: Final answer
    x = 119,056.22

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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.