Home / 131,680.24-181,718.13-71,251.94

Finding the Fourth Proportional to 131,680.24, 181,718.13 and 71,251.94

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Solution

The fourth proportional to 131,680.24, 181,718.13 and 71,251.94 is: 98,327.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,680.24 : 181,718.13 = 71,251.94 : x
  2. Step 2: Convert to fraction form
    131,680.24/181,718.13 = 71,251.94/x
  3. Step 3: Cross multiply
    131,680.24x = 181,718.13 × 71,251.94
  4. Step 4: Simplify right side
    131,680.24x = 12,947,769,749.97
  5. Step 5: Solve for x
    x = 12,947,769,749.97/131,680.24
  6. Step 6: Final answer
    x = 98,327.36

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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.