Home / 143,733.44-198,358.28-80,071.28

Finding the Fourth Proportional to 143,733.44, 198,358.28 and 80,071.28

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Solution

The fourth proportional to 143,733.44, 198,358.28 and 80,071.28 is: 110,501.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,733.44 : 198,358.28 = 80,071.28 : x
  2. Step 2: Convert to fraction form
    143,733.44/198,358.28 = 80,071.28/x
  3. Step 3: Cross multiply
    143,733.44x = 198,358.28 × 80,071.28
  4. Step 4: Simplify right side
    143,733.44x = 15,882,801,378.20
  5. Step 5: Solve for x
    x = 15,882,801,378.20/143,733.44
  6. Step 6: Final answer
    x = 110,501.78

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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.