Home / 131,785.92-181,867.68-75,202.56

Finding the Fourth Proportional to 131,785.92, 181,867.68 and 75,202.56

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Solution

The fourth proportional to 131,785.92, 181,867.68 and 75,202.56 is: 103,781.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,785.92 : 181,867.68 = 75,202.56 : x
  2. Step 2: Convert to fraction form
    131,785.92/181,867.68 = 75,202.56/x
  3. Step 3: Cross multiply
    131,785.92x = 181,867.68 × 75,202.56
  4. Step 4: Simplify right side
    131,785.92x = 13,676,915,117.26
  5. Step 5: Solve for x
    x = 13,676,915,117.26/131,785.92
  6. Step 6: Final answer
    x = 103,781.31

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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.