Home / 125,168.85-187,753.23-83,131

Finding the Fourth Proportional to 125,168.85, 187,753.23 and 83,131

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Solution

The fourth proportional to 125,168.85, 187,753.23 and 83,131 is: 124,696.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,168.85 : 187,753.23 = 83,131 : x
  2. Step 2: Convert to fraction form
    125,168.85/187,753.23 = 83,131/x
  3. Step 3: Cross multiply
    125,168.85x = 187,753.23 × 83,131
  4. Step 4: Simplify right side
    125,168.85x = 15,608,113,763.13
  5. Step 5: Solve for x
    x = 15,608,113,763.13/125,168.85
  6. Step 6: Final answer
    x = 124,696.47

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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.