Home / 143,627.92-198,203.16-79,964.44

Finding the Fourth Proportional to 143,627.92, 198,203.16 and 79,964.44

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Solution

The fourth proportional to 143,627.92, 198,203.16 and 79,964.44 is: 110,349.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,627.92 : 198,203.16 = 79,964.44 : x
  2. Step 2: Convert to fraction form
    143,627.92/198,203.16 = 79,964.44/x
  3. Step 3: Cross multiply
    143,627.92x = 198,203.16 × 79,964.44
  4. Step 4: Simplify right side
    143,627.92x = 15,849,204,695.63
  5. Step 5: Solve for x
    x = 15,849,204,695.63/143,627.92
  6. Step 6: Final answer
    x = 110,349.05

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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.