Home / 130,705.38-196,178.31-80,882.82

Finding the Fourth Proportional to 130,705.38, 196,178.31 and 80,882.82

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Solution

The fourth proportional to 130,705.38, 196,178.31 and 80,882.82 is: 121,398.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,705.38 : 196,178.31 = 80,882.82 : x
  2. Step 2: Convert to fraction form
    130,705.38/196,178.31 = 80,882.82/x
  3. Step 3: Cross multiply
    130,705.38x = 196,178.31 × 80,882.82
  4. Step 4: Simplify right side
    130,705.38x = 15,867,454,935.63
  5. Step 5: Solve for x
    x = 15,867,454,935.63/130,705.38
  6. Step 6: Final answer
    x = 121,398.64

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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.