Home / 143,764.28-198,400.74-80,102.04

Finding the Fourth Proportional to 143,764.28, 198,400.74 and 80,102.04

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Solution

The fourth proportional to 143,764.28, 198,400.74 and 80,102.04 is: 110,544.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,764.28 : 198,400.74 = 80,102.04 : x
  2. Step 2: Convert to fraction form
    143,764.28/198,400.74 = 80,102.04/x
  3. Step 3: Cross multiply
    143,764.28x = 198,400.74 × 80,102.04
  4. Step 4: Simplify right side
    143,764.28x = 15,892,304,011.51
  5. Step 5: Solve for x
    x = 15,892,304,011.51/143,764.28
  6. Step 6: Final answer
    x = 110,544.18

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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.