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Finding the Fourth Proportional to 107,517.70, 161,276.55 and 88,490.80

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Solution

The fourth proportional to 107,517.70, 161,276.55 and 88,490.80 is: 132,736.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,517.70 : 161,276.55 = 88,490.80 : x
  2. Step 2: Convert to fraction form
    107,517.70/161,276.55 = 88,490.80/x
  3. Step 3: Cross multiply
    107,517.70x = 161,276.55 × 88,490.80
  4. Step 4: Simplify right side
    107,517.70x = 14,271,490,930.74
  5. Step 5: Solve for x
    x = 14,271,490,930.74/107,517.70
  6. Step 6: Final answer
    x = 132,736.20

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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.