Home / 144,198.20-198,973.86-80,527.88

Finding the Fourth Proportional to 144,198.20, 198,973.86 and 80,527.88

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Solution

The fourth proportional to 144,198.20, 198,973.86 and 80,527.88 is: 111,117.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,198.20 : 198,973.86 = 80,527.88 : x
  2. Step 2: Convert to fraction form
    144,198.20/198,973.86 = 80,527.88/x
  3. Step 3: Cross multiply
    144,198.20x = 198,973.86 × 80,527.88
  4. Step 4: Simplify right side
    144,198.20x = 16,022,943,121.22
  5. Step 5: Solve for x
    x = 16,022,943,121.22/144,198.20
  6. Step 6: Final answer
    x = 111,117.50

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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.