Home / 143,552.25-198,102.11-79,890.10

Finding the Fourth Proportional to 143,552.25, 198,102.11 and 79,890.10

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Solution

The fourth proportional to 143,552.25, 198,102.11 and 79,890.10 is: 110,248.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,552.25 : 198,102.11 = 79,890.10 : x
  2. Step 2: Convert to fraction form
    143,552.25/198,102.11 = 79,890.10/x
  3. Step 3: Cross multiply
    143,552.25x = 198,102.11 × 79,890.10
  4. Step 4: Simplify right side
    143,552.25x = 15,826,396,483.41
  5. Step 5: Solve for x
    x = 15,826,396,483.41/143,552.25
  6. Step 6: Final answer
    x = 110,248.33

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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.