Home / 143,872.66-198,542.10-80,208.82

Finding the Fourth Proportional to 143,872.66, 198,542.10 and 80,208.82

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Solution

The fourth proportional to 143,872.66, 198,542.10 and 80,208.82 is: 110,686.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,872.66 : 198,542.10 = 80,208.82 : x
  2. Step 2: Convert to fraction form
    143,872.66/198,542.10 = 80,208.82/x
  3. Step 3: Cross multiply
    143,872.66x = 198,542.10 × 80,208.82
  4. Step 4: Simplify right side
    143,872.66x = 15,924,827,561.32
  5. Step 5: Solve for x
    x = 15,924,827,561.32/143,872.66
  6. Step 6: Final answer
    x = 110,686.96

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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.