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Finding the Fourth Proportional to 159,087.80, 238,626.20 and 40,760.30

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Solution

The fourth proportional to 159,087.80, 238,626.20 and 40,760.30 is: 61,139.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,087.80 : 238,626.20 = 40,760.30 : x
  2. Step 2: Convert to fraction form
    159,087.80/238,626.20 = 40,760.30/x
  3. Step 3: Cross multiply
    159,087.80x = 238,626.20 × 40,760.30
  4. Step 4: Simplify right side
    159,087.80x = 9,726,475,499.86
  5. Step 5: Solve for x
    x = 9,726,475,499.86/159,087.80
  6. Step 6: Final answer
    x = 61,139.04

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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.