Home / 131,708.25-181,757.82-71,278.86

Finding the Fourth Proportional to 131,708.25, 181,757.82 and 71,278.86

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Solution

The fourth proportional to 131,708.25, 181,757.82 and 71,278.86 is: 98,365.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,708.25 : 181,757.82 = 71,278.86 : x
  2. Step 2: Convert to fraction form
    131,708.25/181,757.82 = 71,278.86/x
  3. Step 3: Cross multiply
    131,708.25x = 181,757.82 × 71,278.86
  4. Step 4: Simplify right side
    131,708.25x = 12,955,490,205.69
  5. Step 5: Solve for x
    x = 12,955,490,205.69/131,708.25
  6. Step 6: Final answer
    x = 98,365.06

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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.