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Finding the Fourth Proportional to 88,033.60, 131,704.80 and 79,739.20

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Solution

The fourth proportional to 88,033.60, 131,704.80 and 79,739.20 is: 119,295.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,033.60 : 131,704.80 = 79,739.20 : x
  2. Step 2: Convert to fraction form
    88,033.60/131,704.80 = 79,739.20/x
  3. Step 3: Cross multiply
    88,033.60x = 131,704.80 × 79,739.20
  4. Step 4: Simplify right side
    88,033.60x = 10,502,035,388.16
  5. Step 5: Solve for x
    x = 10,502,035,388.16/88,033.60
  6. Step 6: Final answer
    x = 119,295.76

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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.