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Finding the Fourth Proportional to 88,493.60, 132,356.40 and 79,200.80

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Solution

The fourth proportional to 88,493.60, 132,356.40 and 79,200.80 is: 118,457.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,493.60 : 132,356.40 = 79,200.80 : x
  2. Step 2: Convert to fraction form
    88,493.60/132,356.40 = 79,200.80/x
  3. Step 3: Cross multiply
    88,493.60x = 132,356.40 × 79,200.80
  4. Step 4: Simplify right side
    88,493.60x = 10,482,732,765.12
  5. Step 5: Solve for x
    x = 10,482,732,765.12/88,493.60
  6. Step 6: Final answer
    x = 118,457.52

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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.