Home / 143,414.72-214,777.56-80,079.20

Finding the Fourth Proportional to 143,414.72, 214,777.56 and 80,079.20

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Solution

The fourth proportional to 143,414.72, 214,777.56 and 80,079.20 is: 119,926.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,414.72 : 214,777.56 = 80,079.20 : x
  2. Step 2: Convert to fraction form
    143,414.72/214,777.56 = 80,079.20/x
  3. Step 3: Cross multiply
    143,414.72x = 214,777.56 × 80,079.20
  4. Step 4: Simplify right side
    143,414.72x = 17,199,215,182.75
  5. Step 5: Solve for x
    x = 17,199,215,182.75/143,414.72
  6. Step 6: Final answer
    x = 119,926.43

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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.