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Finding the Fourth Proportional to 88,874.20, 133,384.20 and 85,958.20

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Solution

The fourth proportional to 88,874.20, 133,384.20 and 85,958.20 is: 129,007.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,874.20 : 133,384.20 = 85,958.20 : x
  2. Step 2: Convert to fraction form
    88,874.20/133,384.20 = 85,958.20/x
  3. Step 3: Cross multiply
    88,874.20x = 133,384.20 × 85,958.20
  4. Step 4: Simplify right side
    88,874.20x = 11,465,465,740.44
  5. Step 5: Solve for x
    x = 11,465,465,740.44/88,874.20
  6. Step 6: Final answer
    x = 129,007.81

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1.5x scale

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.