Home / 142,992.46-197,353.20-79,350.76

Finding the Fourth Proportional to 142,992.46, 197,353.20 and 79,350.76

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Solution

The fourth proportional to 142,992.46, 197,353.20 and 79,350.76 is: 109,517.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,992.46 : 197,353.20 = 79,350.76 : x
  2. Step 2: Convert to fraction form
    142,992.46/197,353.20 = 79,350.76/x
  3. Step 3: Cross multiply
    142,992.46x = 197,353.20 × 79,350.76
  4. Step 4: Simplify right side
    142,992.46x = 15,660,126,408.43
  5. Step 5: Solve for x
    x = 15,660,126,408.43/142,992.46
  6. Step 6: Final answer
    x = 109,517.15

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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.