Home / 131,717.01-181,769.70-71,287.71

Finding the Fourth Proportional to 131,717.01, 181,769.70 and 71,287.71

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Solution

The fourth proportional to 131,717.01, 181,769.70 and 71,287.71 is: 98,377.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,717.01 : 181,769.70 = 71,287.71 : x
  2. Step 2: Convert to fraction form
    131,717.01/181,769.70 = 71,287.71/x
  3. Step 3: Cross multiply
    131,717.01x = 181,769.70 × 71,287.71
  4. Step 4: Simplify right side
    131,717.01x = 12,957,945,660.39
  5. Step 5: Solve for x
    x = 12,957,945,660.39/131,717.01
  6. Step 6: Final answer
    x = 98,377.16

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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.