Home / 143,167.46-197,571.48-79,505.30

Finding the Fourth Proportional to 143,167.46, 197,571.48 and 79,505.30

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Solution

The fourth proportional to 143,167.46, 197,571.48 and 79,505.30 is: 109,717.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,167.46 : 197,571.48 = 79,505.30 : x
  2. Step 2: Convert to fraction form
    143,167.46/197,571.48 = 79,505.30/x
  3. Step 3: Cross multiply
    143,167.46x = 197,571.48 × 79,505.30
  4. Step 4: Simplify right side
    143,167.46x = 15,707,979,788.84
  5. Step 5: Solve for x
    x = 15,707,979,788.84/143,167.46
  6. Step 6: Final answer
    x = 109,717.53

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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.