Home / 89,002.20-133,503.30-88,127.40

Finding the Fourth Proportional to 89,002.20, 133,503.30 and 88,127.40

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Solution

The fourth proportional to 89,002.20, 133,503.30 and 88,127.40 is: 132,191.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,002.20 : 133,503.30 = 88,127.40 : x
  2. Step 2: Convert to fraction form
    89,002.20/133,503.30 = 88,127.40/x
  3. Step 3: Cross multiply
    89,002.20x = 133,503.30 × 88,127.40
  4. Step 4: Simplify right side
    89,002.20x = 11,765,298,720.42
  5. Step 5: Solve for x
    x = 11,765,298,720.42/89,002.20
  6. Step 6: Final answer
    x = 132,191.10

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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.