Home / 143,633.88-198,216.12-79,973.04

Finding the Fourth Proportional to 143,633.88, 198,216.12 and 79,973.04

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Solution

The fourth proportional to 143,633.88, 198,216.12 and 79,973.04 is: 110,363.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,633.88 : 198,216.12 = 79,973.04 : x
  2. Step 2: Convert to fraction form
    143,633.88/198,216.12 = 79,973.04/x
  3. Step 3: Cross multiply
    143,633.88x = 198,216.12 × 79,973.04
  4. Step 4: Simplify right side
    143,633.88x = 15,851,945,693.40
  5. Step 5: Solve for x
    x = 15,851,945,693.40/143,633.88
  6. Step 6: Final answer
    x = 110,363.56

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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.