Home / 131,663.92-197,036.52-107,694.40

Finding the Fourth Proportional to 131,663.92, 197,036.52 and 107,694.40

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Solution

The fourth proportional to 131,663.92, 197,036.52 and 107,694.40 is: 161,165.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,663.92 : 197,036.52 = 107,694.40 : x
  2. Step 2: Convert to fraction form
    131,663.92/197,036.52 = 107,694.40/x
  3. Step 3: Cross multiply
    131,663.92x = 197,036.52 × 107,694.40
  4. Step 4: Simplify right side
    131,663.92x = 21,219,729,799.49
  5. Step 5: Solve for x
    x = 21,219,729,799.49/131,663.92
  6. Step 6: Final answer
    x = 161,165.87

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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.