Home / 140,919.60-194,481.30-77,269.80

Finding the Fourth Proportional to 140,919.60, 194,481.30 and 77,269.80

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Solution

The fourth proportional to 140,919.60, 194,481.30 and 77,269.80 is: 106,639.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,919.60 : 194,481.30 = 77,269.80 : x
  2. Step 2: Convert to fraction form
    140,919.60/194,481.30 = 77,269.80/x
  3. Step 3: Cross multiply
    140,919.60x = 194,481.30 × 77,269.80
  4. Step 4: Simplify right side
    140,919.60x = 15,027,531,154.74
  5. Step 5: Solve for x
    x = 15,027,531,154.74/140,919.60
  6. Step 6: Final answer
    x = 106,639.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.