Home / 151,739.40-227,748.88-76,912.61

Finding the Fourth Proportional to 151,739.40, 227,748.88 and 76,912.61

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Solution

The fourth proportional to 151,739.40, 227,748.88 and 76,912.61 is: 115,439.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,739.40 : 227,748.88 = 76,912.61 : x
  2. Step 2: Convert to fraction form
    151,739.40/227,748.88 = 76,912.61/x
  3. Step 3: Cross multiply
    151,739.40x = 227,748.88 × 76,912.61
  4. Step 4: Simplify right side
    151,739.40x = 17,516,760,785.38
  5. Step 5: Solve for x
    x = 17,516,760,785.38/151,739.40
  6. Step 6: Final answer
    x = 115,439.77

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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.