Home / 91,732.20-137,598.30-82,546.80

Finding the Fourth Proportional to 91,732.20, 137,598.30 and 82,546.80

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Solution

The fourth proportional to 91,732.20, 137,598.30 and 82,546.80 is: 123,820.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,732.20 : 137,598.30 = 82,546.80 : x
  2. Step 2: Convert to fraction form
    91,732.20/137,598.30 = 82,546.80/x
  3. Step 3: Cross multiply
    91,732.20x = 137,598.30 × 82,546.80
  4. Step 4: Simplify right side
    91,732.20x = 11,358,299,350.44
  5. Step 5: Solve for x
    x = 11,358,299,350.44/91,732.20
  6. Step 6: Final answer
    x = 123,820.20

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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.