Home / 112,691.17-155,513.24-61,702.97

Finding the Fourth Proportional to 112,691.17, 155,513.24 and 61,702.97

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Solution

The fourth proportional to 112,691.17, 155,513.24 and 61,702.97 is: 85,149.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,691.17 : 155,513.24 = 61,702.97 : x
  2. Step 2: Convert to fraction form
    112,691.17/155,513.24 = 61,702.97/x
  3. Step 3: Cross multiply
    112,691.17x = 155,513.24 × 61,702.97
  4. Step 4: Simplify right side
    112,691.17x = 9,595,628,782.32
  5. Step 5: Solve for x
    x = 9,595,628,782.32/112,691.17
  6. Step 6: Final answer
    x = 85,149.78

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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.