Home / 123,868.17-170,937.14-67,279.95

Finding the Fourth Proportional to 123,868.17, 170,937.14 and 67,279.95

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Solution

The fourth proportional to 123,868.17, 170,937.14 and 67,279.95 is: 92,845.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,868.17 : 170,937.14 = 67,279.95 : x
  2. Step 2: Convert to fraction form
    123,868.17/170,937.14 = 67,279.95/x
  3. Step 3: Cross multiply
    123,868.17x = 170,937.14 × 67,279.95
  4. Step 4: Simplify right side
    123,868.17x = 11,500,641,895.94
  5. Step 5: Solve for x
    x = 11,500,641,895.94/123,868.17
  6. Step 6: Final answer
    x = 92,845.82

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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.