Home / 143,193.28-197,606.88-79,531.20

Finding the Fourth Proportional to 143,193.28, 197,606.88 and 79,531.20

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Solution

The fourth proportional to 143,193.28, 197,606.88 and 79,531.20 is: 109,753.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,193.28 : 197,606.88 = 79,531.20 : x
  2. Step 2: Convert to fraction form
    143,193.28/197,606.88 = 79,531.20/x
  3. Step 3: Cross multiply
    143,193.28x = 197,606.88 × 79,531.20
  4. Step 4: Simplify right side
    143,193.28x = 15,715,912,294.66
  5. Step 5: Solve for x
    x = 15,715,912,294.66/143,193.28
  6. Step 6: Final answer
    x = 109,753.14

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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.