Home / 87,165-130,747.23-49,197.06

Finding the Fourth Proportional to 87,165, 130,747.23 and 49,197.06

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Solution

The fourth proportional to 87,165, 130,747.23 and 49,197.06 is: 73,795.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,165 : 130,747.23 = 49,197.06 : x
  2. Step 2: Convert to fraction form
    87,165/130,747.23 = 49,197.06/x
  3. Step 3: Cross multiply
    87,165x = 130,747.23 × 49,197.06
  4. Step 4: Simplify right side
    87,165x = 6,432,379,319.14
  5. Step 5: Solve for x
    x = 6,432,379,319.14/87,165
  6. Step 6: Final answer
    x = 73,795.44

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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.