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Finding the Fourth Proportional to 124,873.60, 187,310.40 and 40,641.70

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Solution

The fourth proportional to 124,873.60, 187,310.40 and 40,641.70 is: 60,962.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,873.60 : 187,310.40 = 40,641.70 : x
  2. Step 2: Convert to fraction form
    124,873.60/187,310.40 = 40,641.70/x
  3. Step 3: Cross multiply
    124,873.60x = 187,310.40 × 40,641.70
  4. Step 4: Simplify right side
    124,873.60x = 7,612,613,083.68
  5. Step 5: Solve for x
    x = 7,612,613,083.68/124,873.60
  6. Step 6: Final answer
    x = 60,962.55

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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.