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Finding the Fourth Proportional to 87,529.40, 131,294.10 and 87,529.40

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Solution

The fourth proportional to 87,529.40, 131,294.10 and 87,529.40 is: 131,294.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,529.40 : 131,294.10 = 87,529.40 : x
  2. Step 2: Convert to fraction form
    87,529.40/131,294.10 = 87,529.40/x
  3. Step 3: Cross multiply
    87,529.40x = 131,294.10 × 87,529.40
  4. Step 4: Simplify right side
    87,529.40x = 11,492,093,796.54
  5. Step 5: Solve for x
    x = 11,492,093,796.54/87,529.40
  6. Step 6: Final answer
    x = 131,294.10

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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.