Home / 115,234.35-159,024.61-66,839.55

Finding the Fourth Proportional to 115,234.35, 159,024.61 and 66,839.55

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Solution

The fourth proportional to 115,234.35, 159,024.61 and 66,839.55 is: 92,239.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,234.35 : 159,024.61 = 66,839.55 : x
  2. Step 2: Convert to fraction form
    115,234.35/159,024.61 = 66,839.55/x
  3. Step 3: Cross multiply
    115,234.35x = 159,024.61 × 66,839.55
  4. Step 4: Simplify right side
    115,234.35x = 10,629,132,736.78
  5. Step 5: Solve for x
    x = 10,629,132,736.78/115,234.35
  6. Step 6: Final answer
    x = 92,239.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.