Home / 88,043.20-131,862.30-72,296.80

Finding the Fourth Proportional to 88,043.20, 131,862.30 and 72,296.80

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Solution

The fourth proportional to 88,043.20, 131,862.30 and 72,296.80 is: 108,278.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,043.20 : 131,862.30 = 72,296.80 : x
  2. Step 2: Convert to fraction form
    88,043.20/131,862.30 = 72,296.80/x
  3. Step 3: Cross multiply
    88,043.20x = 131,862.30 × 72,296.80
  4. Step 4: Simplify right side
    88,043.20x = 9,533,222,330.64
  5. Step 5: Solve for x
    x = 9,533,222,330.64/88,043.20
  6. Step 6: Final answer
    x = 108,278.92

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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.