Home / 143,623.42-198,208.17-79,959.82

Finding the Fourth Proportional to 143,623.42, 198,208.17 and 79,959.82

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Solution

The fourth proportional to 143,623.42, 198,208.17 and 79,959.82 is: 110,348.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,623.42 : 198,208.17 = 79,959.82 : x
  2. Step 2: Convert to fraction form
    143,623.42/198,208.17 = 79,959.82/x
  3. Step 3: Cross multiply
    143,623.42x = 198,208.17 × 79,959.82
  4. Step 4: Simplify right side
    143,623.42x = 15,848,689,595.73
  5. Step 5: Solve for x
    x = 15,848,689,595.73/143,623.42
  6. Step 6: Final answer
    x = 110,348.92

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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.