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Finding the Fourth Proportional to 143,876.52, 198,549.72 and 80,213.04

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Solution

The fourth proportional to 143,876.52, 198,549.72 and 80,213.04 is: 110,694.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,876.52 : 198,549.72 = 80,213.04 : x
  2. Step 2: Convert to fraction form
    143,876.52/198,549.72 = 80,213.04/x
  3. Step 3: Cross multiply
    143,876.52x = 198,549.72 × 80,213.04
  4. Step 4: Simplify right side
    143,876.52x = 15,926,276,632.35
  5. Step 5: Solve for x
    x = 15,926,276,632.35/143,876.52
  6. Step 6: Final answer
    x = 110,694.06

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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.