Home / 98,964.20-148,446.30-76,845.80

Finding the Fourth Proportional to 98,964.20, 148,446.30 and 76,845.80

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Solution

The fourth proportional to 98,964.20, 148,446.30 and 76,845.80 is: 115,268.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,964.20 : 148,446.30 = 76,845.80 : x
  2. Step 2: Convert to fraction form
    98,964.20/148,446.30 = 76,845.80/x
  3. Step 3: Cross multiply
    98,964.20x = 148,446.30 × 76,845.80
  4. Step 4: Simplify right side
    98,964.20x = 11,407,474,680.54
  5. Step 5: Solve for x
    x = 11,407,474,680.54/98,964.20
  6. Step 6: Final answer
    x = 115,268.70

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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.