Home / 276,729.30-414,972.45-126,919.80

Finding the Fourth Proportional to 276,729.30, 414,972.45 and 126,919.80

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Solution

The fourth proportional to 276,729.30, 414,972.45 and 126,919.80 is: 190,323.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,729.30 : 414,972.45 = 126,919.80 : x
  2. Step 2: Convert to fraction form
    276,729.30/414,972.45 = 126,919.80/x
  3. Step 3: Cross multiply
    276,729.30x = 414,972.45 × 126,919.80
  4. Step 4: Simplify right side
    276,729.30x = 52,668,220,359.51
  5. Step 5: Solve for x
    x = 52,668,220,359.51/276,729.30
  6. Step 6: Final answer
    x = 190,323.97

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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.