Home / 88,048.20-131,869.80-72,301.80

Finding the Fourth Proportional to 88,048.20, 131,869.80 and 72,301.80

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Solution

The fourth proportional to 88,048.20, 131,869.80 and 72,301.80 is: 108,286.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,048.20 : 131,869.80 = 72,301.80 : x
  2. Step 2: Convert to fraction form
    88,048.20/131,869.80 = 72,301.80/x
  3. Step 3: Cross multiply
    88,048.20x = 131,869.80 × 72,301.80
  4. Step 4: Simplify right side
    88,048.20x = 9,534,423,905.64
  5. Step 5: Solve for x
    x = 9,534,423,905.64/88,048.20
  6. Step 6: Final answer
    x = 108,286.41

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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.