Home / 131,789.29-181,882.26-75,209.17

Finding the Fourth Proportional to 131,789.29, 181,882.26 and 75,209.17

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Solution

The fourth proportional to 131,789.29, 181,882.26 and 75,209.17 is: 103,796.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,789.29 : 181,882.26 = 75,209.17 : x
  2. Step 2: Convert to fraction form
    131,789.29/181,882.26 = 75,209.17/x
  3. Step 3: Cross multiply
    131,789.29x = 181,882.26 × 75,209.17
  4. Step 4: Simplify right side
    131,789.29x = 13,679,213,812.32
  5. Step 5: Solve for x
    x = 13,679,213,812.32/131,789.29
  6. Step 6: Final answer
    x = 103,796.10

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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.