Home / 131,825.38-181,919.17-71,396.11

Finding the Fourth Proportional to 131,825.38, 181,919.17 and 71,396.11

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Solution

The fourth proportional to 131,825.38, 181,919.17 and 71,396.11 is: 98,526.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,825.38 : 181,919.17 = 71,396.11 : x
  2. Step 2: Convert to fraction form
    131,825.38/181,919.17 = 71,396.11/x
  3. Step 3: Cross multiply
    131,825.38x = 181,919.17 × 71,396.11
  4. Step 4: Simplify right side
    131,825.38x = 12,988,320,475.82
  5. Step 5: Solve for x
    x = 12,988,320,475.82/131,825.38
  6. Step 6: Final answer
    x = 98,526.70

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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.