Home / 127,311.75-175,660.85-76,314.96

Finding the Fourth Proportional to 127,311.75, 175,660.85 and 76,314.96

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Solution

The fourth proportional to 127,311.75, 175,660.85 and 76,314.96 is: 105,297.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,311.75 : 175,660.85 = 76,314.96 : x
  2. Step 2: Convert to fraction form
    127,311.75/175,660.85 = 76,314.96/x
  3. Step 3: Cross multiply
    127,311.75x = 175,660.85 × 76,314.96
  4. Step 4: Simplify right side
    127,311.75x = 13,405,550,932.10
  5. Step 5: Solve for x
    x = 13,405,550,932.10/127,311.75
  6. Step 6: Final answer
    x = 105,297.04

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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.