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Finding the Fourth Proportional to 151,753.68, 209,445.64 and 88,144.72

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Solution

The fourth proportional to 151,753.68, 209,445.64 and 88,144.72 is: 121,654.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,753.68 : 209,445.64 = 88,144.72 : x
  2. Step 2: Convert to fraction form
    151,753.68/209,445.64 = 88,144.72/x
  3. Step 3: Cross multiply
    151,753.68x = 209,445.64 × 88,144.72
  4. Step 4: Simplify right side
    151,753.68x = 18,461,527,293.02
  5. Step 5: Solve for x
    x = 18,461,527,293.02/151,753.68
  6. Step 6: Final answer
    x = 121,654.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.