Home / 143,968.72-198,674.52-80,304.88

Finding the Fourth Proportional to 143,968.72, 198,674.52 and 80,304.88

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Solution

The fourth proportional to 143,968.72, 198,674.52 and 80,304.88 is: 110,819.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,968.72 : 198,674.52 = 80,304.88 : x
  2. Step 2: Convert to fraction form
    143,968.72/198,674.52 = 80,304.88/x
  3. Step 3: Cross multiply
    143,968.72x = 198,674.52 × 80,304.88
  4. Step 4: Simplify right side
    143,968.72x = 15,954,533,487.66
  5. Step 5: Solve for x
    x = 15,954,533,487.66/143,968.72
  6. Step 6: Final answer
    x = 110,819.44

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1.5x scale

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.