Home / 144,051.44-198,781.12-79,517.64

Finding the Fourth Proportional to 144,051.44, 198,781.12 and 79,517.64

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Solution

The fourth proportional to 144,051.44, 198,781.12 and 79,517.64 is: 109,728.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,051.44 : 198,781.12 = 79,517.64 : x
  2. Step 2: Convert to fraction form
    144,051.44/198,781.12 = 79,517.64/x
  3. Step 3: Cross multiply
    144,051.44x = 198,781.12 × 79,517.64
  4. Step 4: Simplify right side
    144,051.44x = 15,806,605,538.96
  5. Step 5: Solve for x
    x = 15,806,605,538.96/144,051.44
  6. Step 6: Final answer
    x = 109,728.90

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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.