Home / 143,270.57-197,719.58-79,608.22

Finding the Fourth Proportional to 143,270.57, 197,719.58 and 79,608.22

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Solution

The fourth proportional to 143,270.57, 197,719.58 and 79,608.22 is: 109,862.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,270.57 : 197,719.58 = 79,608.22 : x
  2. Step 2: Convert to fraction form
    143,270.57/197,719.58 = 79,608.22/x
  3. Step 3: Cross multiply
    143,270.57x = 197,719.58 × 79,608.22
  4. Step 4: Simplify right side
    143,270.57x = 15,740,103,822.95
  5. Step 5: Solve for x
    x = 15,740,103,822.95/143,270.57
  6. Step 6: Final answer
    x = 109,862.78

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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.