Home / 103,781.01-143,201.97-58,456.12

Finding the Fourth Proportional to 103,781.01, 143,201.97 and 58,456.12

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Solution

The fourth proportional to 103,781.01, 143,201.97 and 58,456.12 is: 80,660.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,781.01 : 143,201.97 = 58,456.12 : x
  2. Step 2: Convert to fraction form
    103,781.01/143,201.97 = 58,456.12/x
  3. Step 3: Cross multiply
    103,781.01x = 143,201.97 × 58,456.12
  4. Step 4: Simplify right side
    103,781.01x = 8,371,031,542.56
  5. Step 5: Solve for x
    x = 8,371,031,542.56/103,781.01
  6. Step 6: Final answer
    x = 80,660.53

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1.5x scale

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.