Home / 123,370.48-170,251.24-66,781.84

Finding the Fourth Proportional to 123,370.48, 170,251.24 and 66,781.84

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Solution

The fourth proportional to 123,370.48, 170,251.24 and 66,781.84 is: 92,158.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,370.48 : 170,251.24 = 66,781.84 : x
  2. Step 2: Convert to fraction form
    123,370.48/170,251.24 = 66,781.84/x
  3. Step 3: Cross multiply
    123,370.48x = 170,251.24 × 66,781.84
  4. Step 4: Simplify right side
    123,370.48x = 11,369,691,069.48
  5. Step 5: Solve for x
    x = 11,369,691,069.48/123,370.48
  6. Step 6: Final answer
    x = 92,158.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.