Home / 138,134.72-206,176.92-119,077.76

Finding the Fourth Proportional to 138,134.72, 206,176.92 and 119,077.76

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Solution

The fourth proportional to 138,134.72, 206,176.92 and 119,077.76 is: 177,732.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,134.72 : 206,176.92 = 119,077.76 : x
  2. Step 2: Convert to fraction form
    138,134.72/206,176.92 = 119,077.76/x
  3. Step 3: Cross multiply
    138,134.72x = 206,176.92 × 119,077.76
  4. Step 4: Simplify right side
    138,134.72x = 24,551,085,797.30
  5. Step 5: Solve for x
    x = 24,551,085,797.30/138,134.72
  6. Step 6: Final answer
    x = 177,732.91

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.