Home / 143,306.88-197,771.04-79,645.92

Finding the Fourth Proportional to 143,306.88, 197,771.04 and 79,645.92

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Solution

The fourth proportional to 143,306.88, 197,771.04 and 79,645.92 is: 109,915.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,306.88 : 197,771.04 = 79,645.92 : x
  2. Step 2: Convert to fraction form
    143,306.88/197,771.04 = 79,645.92/x
  3. Step 3: Cross multiply
    143,306.88x = 197,771.04 × 79,645.92
  4. Step 4: Simplify right side
    143,306.88x = 15,751,656,430.16
  5. Step 5: Solve for x
    x = 15,751,656,430.16/143,306.88
  6. Step 6: Final answer
    x = 109,915.56

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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.