Home / 143,351.13-197,836.53-79,694.85

Finding the Fourth Proportional to 143,351.13, 197,836.53 and 79,694.85

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Solution

The fourth proportional to 143,351.13, 197,836.53 and 79,694.85 is: 109,985.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,351.13 : 197,836.53 = 79,694.85 : x
  2. Step 2: Convert to fraction form
    143,351.13/197,836.53 = 79,694.85/x
  3. Step 3: Cross multiply
    143,351.13x = 197,836.53 × 79,694.85
  4. Step 4: Simplify right side
    143,351.13x = 15,766,552,582.87
  5. Step 5: Solve for x
    x = 15,766,552,582.87/143,351.13
  6. Step 6: Final answer
    x = 109,985.55

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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.