Home / 143,956.63-198,659.65-80,294.38

Finding the Fourth Proportional to 143,956.63, 198,659.65 and 80,294.38

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Solution

The fourth proportional to 143,956.63, 198,659.65 and 80,294.38 is: 110,805.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,956.63 : 198,659.65 = 80,294.38 : x
  2. Step 2: Convert to fraction form
    143,956.63/198,659.65 = 80,294.38/x
  3. Step 3: Cross multiply
    143,956.63x = 198,659.65 × 80,294.38
  4. Step 4: Simplify right side
    143,956.63x = 15,951,253,427.77
  5. Step 5: Solve for x
    x = 15,951,253,427.77/143,956.63
  6. Step 6: Final answer
    x = 110,805.97

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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.