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Finding the Fourth Proportional to 88,877.60, 133,316.40 and 82,119.20

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Solution

The fourth proportional to 88,877.60, 133,316.40 and 82,119.20 is: 123,178.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,877.60 : 133,316.40 = 82,119.20 : x
  2. Step 2: Convert to fraction form
    88,877.60/133,316.40 = 82,119.20/x
  3. Step 3: Cross multiply
    88,877.60x = 133,316.40 × 82,119.20
  4. Step 4: Simplify right side
    88,877.60x = 10,947,836,114.88
  5. Step 5: Solve for x
    x = 10,947,836,114.88/88,877.60
  6. Step 6: Final answer
    x = 123,178.80

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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.