Home / 138,660.28-208,034.94-96,145

Finding the Fourth Proportional to 138,660.28, 208,034.94 and 96,145

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Solution

The fourth proportional to 138,660.28, 208,034.94 and 96,145 is: 144,248.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,660.28 : 208,034.94 = 96,145 : x
  2. Step 2: Convert to fraction form
    138,660.28/208,034.94 = 96,145/x
  3. Step 3: Cross multiply
    138,660.28x = 208,034.94 × 96,145
  4. Step 4: Simplify right side
    138,660.28x = 20,001,519,306.30
  5. Step 5: Solve for x
    x = 20,001,519,306.30/138,660.28
  6. Step 6: Final answer
    x = 144,248.37

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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.