Home / 131,083.07-180,889.65-80,077.97

Finding the Fourth Proportional to 131,083.07, 180,889.65 and 80,077.97

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Solution

The fourth proportional to 131,083.07, 180,889.65 and 80,077.97 is: 110,504.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,083.07 : 180,889.65 = 80,077.97 : x
  2. Step 2: Convert to fraction form
    131,083.07/180,889.65 = 80,077.97/x
  3. Step 3: Cross multiply
    131,083.07x = 180,889.65 × 80,077.97
  4. Step 4: Simplify right side
    131,083.07x = 14,485,275,061.56
  5. Step 5: Solve for x
    x = 14,485,275,061.56/131,083.07
  6. Step 6: Final answer
    x = 110,504.55

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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.