Home / 143,950.48-198,644.76-78,535.44

Finding the Fourth Proportional to 143,950.48, 198,644.76 and 78,535.44

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Solution

The fourth proportional to 143,950.48, 198,644.76 and 78,535.44 is: 108,375.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,950.48 : 198,644.76 = 78,535.44 : x
  2. Step 2: Convert to fraction form
    143,950.48/198,644.76 = 78,535.44/x
  3. Step 3: Cross multiply
    143,950.48x = 198,644.76 × 78,535.44
  4. Step 4: Simplify right side
    143,950.48x = 15,600,653,630.29
  5. Step 5: Solve for x
    x = 15,600,653,630.29/143,950.48
  6. Step 6: Final answer
    x = 108,375.14

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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.