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Finding the Fourth Proportional to 159,619.26, 239,428.89 and 54,439.14

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Solution

The fourth proportional to 159,619.26, 239,428.89 and 54,439.14 is: 81,658.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,619.26 : 239,428.89 = 54,439.14 : x
  2. Step 2: Convert to fraction form
    159,619.26/239,428.89 = 54,439.14/x
  3. Step 3: Cross multiply
    159,619.26x = 239,428.89 × 54,439.14
  4. Step 4: Simplify right side
    159,619.26x = 13,034,302,862.75
  5. Step 5: Solve for x
    x = 13,034,302,862.75/159,619.26
  6. Step 6: Final answer
    x = 81,658.71

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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.