Home / 124,876.10-187,314.15-71,513.30

Finding the Fourth Proportional to 124,876.10, 187,314.15 and 71,513.30

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Solution

The fourth proportional to 124,876.10, 187,314.15 and 71,513.30 is: 107,269.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,876.10 : 187,314.15 = 71,513.30 : x
  2. Step 2: Convert to fraction form
    124,876.10/187,314.15 = 71,513.30/x
  3. Step 3: Cross multiply
    124,876.10x = 187,314.15 × 71,513.30
  4. Step 4: Simplify right side
    124,876.10x = 13,395,453,003.20
  5. Step 5: Solve for x
    x = 13,395,453,003.20/124,876.10
  6. Step 6: Final answer
    x = 107,269.95

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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.