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Finding the Fourth Proportional to 159,002.40, 238,532.40 and 79,917.60

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Solution

The fourth proportional to 159,002.40, 238,532.40 and 79,917.60 is: 119,890.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,002.40 : 238,532.40 = 79,917.60 : x
  2. Step 2: Convert to fraction form
    159,002.40/238,532.40 = 79,917.60/x
  3. Step 3: Cross multiply
    159,002.40x = 238,532.40 × 79,917.60
  4. Step 4: Simplify right side
    159,002.40x = 19,062,936,930.24
  5. Step 5: Solve for x
    x = 19,062,936,930.24/159,002.40
  6. Step 6: Final answer
    x = 119,890.88

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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.