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Finding the Fourth Proportional to 88,056.80, 131,854.80 and 83,909.60

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Solution

The fourth proportional to 88,056.80, 131,854.80 and 83,909.60 is: 125,644.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,056.80 : 131,854.80 = 83,909.60 : x
  2. Step 2: Convert to fraction form
    88,056.80/131,854.80 = 83,909.60/x
  3. Step 3: Cross multiply
    88,056.80x = 131,854.80 × 83,909.60
  4. Step 4: Simplify right side
    88,056.80x = 11,063,883,526.08
  5. Step 5: Solve for x
    x = 11,063,883,526.08/88,056.80
  6. Step 6: Final answer
    x = 125,644.85

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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.