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Finding the Fourth Proportional to 137,865.60, 206,812.80 and 38,025.84

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Solution

The fourth proportional to 137,865.60, 206,812.80 and 38,025.84 is: 57,042.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,865.60 : 206,812.80 = 38,025.84 : x
  2. Step 2: Convert to fraction form
    137,865.60/206,812.80 = 38,025.84/x
  3. Step 3: Cross multiply
    137,865.60x = 206,812.80 × 38,025.84
  4. Step 4: Simplify right side
    137,865.60x = 7,864,230,442.75
  5. Step 5: Solve for x
    x = 7,864,230,442.75/137,865.60
  6. Step 6: Final answer
    x = 57,042.73

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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.