Home / 138,432.60-207,648.90-44,938.35

Finding the Fourth Proportional to 138,432.60, 207,648.90 and 44,938.35

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Solution

The fourth proportional to 138,432.60, 207,648.90 and 44,938.35 is: 67,407.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,432.60 : 207,648.90 = 44,938.35 : x
  2. Step 2: Convert to fraction form
    138,432.60/207,648.90 = 44,938.35/x
  3. Step 3: Cross multiply
    138,432.60x = 207,648.90 × 44,938.35
  4. Step 4: Simplify right side
    138,432.60x = 9,331,398,945.32
  5. Step 5: Solve for x
    x = 9,331,398,945.32/138,432.60
  6. Step 6: Final answer
    x = 67,407.53

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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.