Home / 131,680.71-181,718.02-71,250.02

Finding the Fourth Proportional to 131,680.71, 181,718.02 and 71,250.02

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Solution

The fourth proportional to 131,680.71, 181,718.02 and 71,250.02 is: 98,324.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,680.71 : 181,718.02 = 71,250.02 : x
  2. Step 2: Convert to fraction form
    131,680.71/181,718.02 = 71,250.02/x
  3. Step 3: Cross multiply
    131,680.71x = 181,718.02 × 71,250.02
  4. Step 4: Simplify right side
    131,680.71x = 12,947,412,020.49
  5. Step 5: Solve for x
    x = 12,947,412,020.49/131,680.71
  6. Step 6: Final answer
    x = 98,324.29

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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.