Home / 143,968.70-198,675.45-79,438.52

Finding the Fourth Proportional to 143,968.70, 198,675.45 and 79,438.52

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Solution

The fourth proportional to 143,968.70, 198,675.45 and 79,438.52 is: 109,624.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,968.70 : 198,675.45 = 79,438.52 : x
  2. Step 2: Convert to fraction form
    143,968.70/198,675.45 = 79,438.52/x
  3. Step 3: Cross multiply
    143,968.70x = 198,675.45 × 79,438.52
  4. Step 4: Simplify right side
    143,968.70x = 15,782,483,708.33
  5. Step 5: Solve for x
    x = 15,782,483,708.33/143,968.70
  6. Step 6: Final answer
    x = 109,624.41

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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.