Home / 143,521.48-198,067.42-79,860.66

Finding the Fourth Proportional to 143,521.48, 198,067.42 and 79,860.66

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Solution

The fourth proportional to 143,521.48, 198,067.42 and 79,860.66 is: 110,212.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,521.48 : 198,067.42 = 79,860.66 : x
  2. Step 2: Convert to fraction form
    143,521.48/198,067.42 = 79,860.66/x
  3. Step 3: Cross multiply
    143,521.48x = 198,067.42 × 79,860.66
  4. Step 4: Simplify right side
    143,521.48x = 15,817,794,885.70
  5. Step 5: Solve for x
    x = 15,817,794,885.70/143,521.48
  6. Step 6: Final answer
    x = 110,212.04

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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.