Home / 131,943.30-182,081.31-71,515.44

Finding the Fourth Proportional to 131,943.30, 182,081.31 and 71,515.44

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Solution

The fourth proportional to 131,943.30, 182,081.31 and 71,515.44 is: 98,691.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,943.30 : 182,081.31 = 71,515.44 : x
  2. Step 2: Convert to fraction form
    131,943.30/182,081.31 = 71,515.44/x
  3. Step 3: Cross multiply
    131,943.30x = 182,081.31 × 71,515.44
  4. Step 4: Simplify right side
    131,943.30x = 13,021,625,000.43
  5. Step 5: Solve for x
    x = 13,021,625,000.43/131,943.30
  6. Step 6: Final answer
    x = 98,691.07

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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.