Home / 131,680.74-181,719.06-71,252.42

Finding the Fourth Proportional to 131,680.74, 181,719.06 and 71,252.42

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Solution

The fourth proportional to 131,680.74, 181,719.06 and 71,252.42 is: 98,328.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,680.74 : 181,719.06 = 71,252.42 : x
  2. Step 2: Convert to fraction form
    131,680.74/181,719.06 = 71,252.42/x
  3. Step 3: Cross multiply
    131,680.74x = 181,719.06 × 71,252.42
  4. Step 4: Simplify right side
    131,680.74x = 12,947,922,010.13
  5. Step 5: Solve for x
    x = 12,947,922,010.13/131,680.74
  6. Step 6: Final answer
    x = 98,328.14

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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.