Home / 131,680.44-181,718.51-71,251.20

Finding the Fourth Proportional to 131,680.44, 181,718.51 and 71,251.20

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Solution

The fourth proportional to 131,680.44, 181,718.51 and 71,251.20 is: 98,326.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,680.44 : 181,718.51 = 71,251.20 : x
  2. Step 2: Convert to fraction form
    131,680.44/181,718.51 = 71,251.20/x
  3. Step 3: Cross multiply
    131,680.44x = 181,718.51 × 71,251.20
  4. Step 4: Simplify right side
    131,680.44x = 12,947,661,543.46
  5. Step 5: Solve for x
    x = 12,947,661,543.46/131,680.44
  6. Step 6: Final answer
    x = 98,326.38

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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.