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Finding the Fourth Proportional to 137,445.60, 206,139.60 and 67,375.20

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Solution

The fourth proportional to 137,445.60, 206,139.60 and 67,375.20 is: 101,048.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,445.60 : 206,139.60 = 67,375.20 : x
  2. Step 2: Convert to fraction form
    137,445.60/206,139.60 = 67,375.20/x
  3. Step 3: Cross multiply
    137,445.60x = 206,139.60 × 67,375.20
  4. Step 4: Simplify right side
    137,445.60x = 13,888,696,777.92
  5. Step 5: Solve for x
    x = 13,888,696,777.92/137,445.60
  6. Step 6: Final answer
    x = 101,048.68

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1.5x scale

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.