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Finding the Fourth Proportional to 121,805.60, 182,902.80 and 88,757.60

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Solution

The fourth proportional to 121,805.60, 182,902.80 and 88,757.60 is: 133,278.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,805.60 : 182,902.80 = 88,757.60 : x
  2. Step 2: Convert to fraction form
    121,805.60/182,902.80 = 88,757.60/x
  3. Step 3: Cross multiply
    121,805.60x = 182,902.80 × 88,757.60
  4. Step 4: Simplify right side
    121,805.60x = 16,234,013,561.28
  5. Step 5: Solve for x
    x = 16,234,013,561.28/121,805.60
  6. Step 6: Final answer
    x = 133,278.06

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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.