Home / 131,961.72-182,120.22-75,381.60

Finding the Fourth Proportional to 131,961.72, 182,120.22 and 75,381.60

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Solution

The fourth proportional to 131,961.72, 182,120.22 and 75,381.60 is: 104,034.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,961.72 : 182,120.22 = 75,381.60 : x
  2. Step 2: Convert to fraction form
    131,961.72/182,120.22 = 75,381.60/x
  3. Step 3: Cross multiply
    131,961.72x = 182,120.22 × 75,381.60
  4. Step 4: Simplify right side
    131,961.72x = 13,728,513,575.95
  5. Step 5: Solve for x
    x = 13,728,513,575.95/131,961.72
  6. Step 6: Final answer
    x = 104,034.06

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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.