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Finding the Fourth Proportional to 100,862.70, 151,294.05 and 88,396.80

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Solution

The fourth proportional to 100,862.70, 151,294.05 and 88,396.80 is: 132,595.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,862.70 : 151,294.05 = 88,396.80 : x
  2. Step 2: Convert to fraction form
    100,862.70/151,294.05 = 88,396.80/x
  3. Step 3: Cross multiply
    100,862.70x = 151,294.05 × 88,396.80
  4. Step 4: Simplify right side
    100,862.70x = 13,373,909,879.04
  5. Step 5: Solve for x
    x = 13,373,909,879.04/100,862.70
  6. Step 6: Final answer
    x = 132,595.20

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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.