Home / 129,984.30-194,976.45-127,359.90

Finding the Fourth Proportional to 129,984.30, 194,976.45 and 127,359.90

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Solution

The fourth proportional to 129,984.30, 194,976.45 and 127,359.90 is: 191,039.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,984.30 : 194,976.45 = 127,359.90 : x
  2. Step 2: Convert to fraction form
    129,984.30/194,976.45 = 127,359.90/x
  3. Step 3: Cross multiply
    129,984.30x = 194,976.45 × 127,359.90
  4. Step 4: Simplify right side
    129,984.30x = 24,832,181,174.36
  5. Step 5: Solve for x
    x = 24,832,181,174.36/129,984.30
  6. Step 6: Final answer
    x = 191,039.85

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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.