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Finding the Fourth Proportional to 99,187.60, 148,781.40 and 88,301.20

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Solution

The fourth proportional to 99,187.60, 148,781.40 and 88,301.20 is: 132,451.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,187.60 : 148,781.40 = 88,301.20 : x
  2. Step 2: Convert to fraction form
    99,187.60/148,781.40 = 88,301.20/x
  3. Step 3: Cross multiply
    99,187.60x = 148,781.40 × 88,301.20
  4. Step 4: Simplify right side
    99,187.60x = 13,137,576,157.68
  5. Step 5: Solve for x
    x = 13,137,576,157.68/99,187.60
  6. Step 6: Final answer
    x = 132,451.80

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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.