Home / 138,321.10-207,481.65-96,330.70

Finding the Fourth Proportional to 138,321.10, 207,481.65 and 96,330.70

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Solution

The fourth proportional to 138,321.10, 207,481.65 and 96,330.70 is: 144,496.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,321.10 : 207,481.65 = 96,330.70 : x
  2. Step 2: Convert to fraction form
    138,321.10/207,481.65 = 96,330.70/x
  3. Step 3: Cross multiply
    138,321.10x = 207,481.65 × 96,330.70
  4. Step 4: Simplify right side
    138,321.10x = 19,986,852,581.66
  5. Step 5: Solve for x
    x = 19,986,852,581.66/138,321.10
  6. Step 6: Final answer
    x = 144,496.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.