Home / 131,660.92-197,032.02-107,691.40

Finding the Fourth Proportional to 131,660.92, 197,032.02 and 107,691.40

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Solution

The fourth proportional to 131,660.92, 197,032.02 and 107,691.40 is: 161,161.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,660.92 : 197,032.02 = 107,691.40 : x
  2. Step 2: Convert to fraction form
    131,660.92/197,032.02 = 107,691.40/x
  3. Step 3: Cross multiply
    131,660.92x = 197,032.02 × 107,691.40
  4. Step 4: Simplify right side
    131,660.92x = 21,218,654,078.63
  5. Step 5: Solve for x
    x = 21,218,654,078.63/131,660.92
  6. Step 6: Final answer
    x = 161,161.37

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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.