Home / 144,003.45-198,723.35-79,473.28

Finding the Fourth Proportional to 144,003.45, 198,723.35 and 79,473.28

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Solution

The fourth proportional to 144,003.45, 198,723.35 and 79,473.28 is: 109,672.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,003.45 : 198,723.35 = 79,473.28 : x
  2. Step 2: Convert to fraction form
    144,003.45/198,723.35 = 79,473.28/x
  3. Step 3: Cross multiply
    144,003.45x = 198,723.35 × 79,473.28
  4. Step 4: Simplify right side
    144,003.45x = 15,793,195,729.14
  5. Step 5: Solve for x
    x = 15,793,195,729.14/144,003.45
  6. Step 6: Final answer
    x = 109,672.35

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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.