Home / 143,034.72-198,292.08-135,451.20

Finding the Fourth Proportional to 143,034.72, 198,292.08 and 135,451.20

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Solution

The fourth proportional to 143,034.72, 198,292.08 and 135,451.20 is: 187,778.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,034.72 : 198,292.08 = 135,451.20 : x
  2. Step 2: Convert to fraction form
    143,034.72/198,292.08 = 135,451.20/x
  3. Step 3: Cross multiply
    143,034.72x = 198,292.08 × 135,451.20
  4. Step 4: Simplify right side
    143,034.72x = 26,858,900,186.50
  5. Step 5: Solve for x
    x = 26,858,900,186.50/143,034.72
  6. Step 6: Final answer
    x = 187,778.88

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.