Home / 131,986.46-182,127.67-81,001.34

Finding the Fourth Proportional to 131,986.46, 182,127.67 and 81,001.34

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Solution

The fourth proportional to 131,986.46, 182,127.67 and 81,001.34 is: 111,773.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,986.46 : 182,127.67 = 81,001.34 : x
  2. Step 2: Convert to fraction form
    131,986.46/182,127.67 = 81,001.34/x
  3. Step 3: Cross multiply
    131,986.46x = 182,127.67 × 81,001.34
  4. Step 4: Simplify right side
    131,986.46x = 14,752,585,321.08
  5. Step 5: Solve for x
    x = 14,752,585,321.08/131,986.46
  6. Step 6: Final answer
    x = 111,773.48

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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.