Home / 139,588.31-192,648.97-82,224.66

Finding the Fourth Proportional to 139,588.31, 192,648.97 and 82,224.66

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Solution

The fourth proportional to 139,588.31, 192,648.97 and 82,224.66 is: 113,480.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,588.31 : 192,648.97 = 82,224.66 : x
  2. Step 2: Convert to fraction form
    139,588.31/192,648.97 = 82,224.66/x
  3. Step 3: Cross multiply
    139,588.31x = 192,648.97 × 82,224.66
  4. Step 4: Simplify right side
    139,588.31x = 15,840,496,574.47
  5. Step 5: Solve for x
    x = 15,840,496,574.47/139,588.31
  6. Step 6: Final answer
    x = 113,480.11

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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.