Home / 143,691.89-198,295.02-83,274.12

Finding the Fourth Proportional to 143,691.89, 198,295.02 and 83,274.12

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Solution

The fourth proportional to 143,691.89, 198,295.02 and 83,274.12 is: 114,918.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,691.89 : 198,295.02 = 83,274.12 : x
  2. Step 2: Convert to fraction form
    143,691.89/198,295.02 = 83,274.12/x
  3. Step 3: Cross multiply
    143,691.89x = 198,295.02 × 83,274.12
  4. Step 4: Simplify right side
    143,691.89x = 16,512,843,290.88
  5. Step 5: Solve for x
    x = 16,512,843,290.88/143,691.89
  6. Step 6: Final answer
    x = 114,918.41

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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.