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Finding the Fourth Proportional to 159,534.20, 239,244.60 and 70,628.60

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Solution

The fourth proportional to 159,534.20, 239,244.60 and 70,628.60 is: 105,917.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,534.20 : 239,244.60 = 70,628.60 : x
  2. Step 2: Convert to fraction form
    159,534.20/239,244.60 = 70,628.60/x
  3. Step 3: Cross multiply
    159,534.20x = 239,244.60 × 70,628.60
  4. Step 4: Simplify right side
    159,534.20x = 16,897,511,155.56
  5. Step 5: Solve for x
    x = 16,897,511,155.56/159,534.20
  6. Step 6: Final answer
    x = 105,917.80

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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.