Home / 126,949.40-175,120.61-80,923.58

Finding the Fourth Proportional to 126,949.40, 175,120.61 and 80,923.58

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Solution

The fourth proportional to 126,949.40, 175,120.61 and 80,923.58 is: 111,630.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,949.40 : 175,120.61 = 80,923.58 : x
  2. Step 2: Convert to fraction form
    126,949.40/175,120.61 = 80,923.58/x
  3. Step 3: Cross multiply
    126,949.40x = 175,120.61 × 80,923.58
  4. Step 4: Simplify right side
    126,949.40x = 14,171,386,692.98
  5. Step 5: Solve for x
    x = 14,171,386,692.98/126,949.40
  6. Step 6: Final answer
    x = 111,630.20

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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.