Home / 124,862.60-187,067.10-72,115.40

Finding the Fourth Proportional to 124,862.60, 187,067.10 and 72,115.40

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Solution

The fourth proportional to 124,862.60, 187,067.10 and 72,115.40 is: 108,042.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,862.60 : 187,067.10 = 72,115.40 : x
  2. Step 2: Convert to fraction form
    124,862.60/187,067.10 = 72,115.40/x
  3. Step 3: Cross multiply
    124,862.60x = 187,067.10 × 72,115.40
  4. Step 4: Simplify right side
    124,862.60x = 13,490,418,743.34
  5. Step 5: Solve for x
    x = 13,490,418,743.34/124,862.60
  6. Step 6: Final answer
    x = 108,042.11

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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.