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Finding the Fourth Proportional to 159,548.40, 239,207.40 and 89,449.20

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Solution

The fourth proportional to 159,548.40, 239,207.40 and 89,449.20 is: 134,109.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,548.40 : 239,207.40 = 89,449.20 : x
  2. Step 2: Convert to fraction form
    159,548.40/239,207.40 = 89,449.20/x
  3. Step 3: Cross multiply
    159,548.40x = 239,207.40 × 89,449.20
  4. Step 4: Simplify right side
    159,548.40x = 21,396,910,564.08
  5. Step 5: Solve for x
    x = 21,396,910,564.08/159,548.40
  6. Step 6: Final answer
    x = 134,109.21

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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.