Home / 84,180.68-125,581.05-81,892.52

Finding the Fourth Proportional to 84,180.68, 125,581.05 and 81,892.52

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Solution

The fourth proportional to 84,180.68, 125,581.05 and 81,892.52 is: 122,167.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,180.68 : 125,581.05 = 81,892.52 : x
  2. Step 2: Convert to fraction form
    84,180.68/125,581.05 = 81,892.52/x
  3. Step 3: Cross multiply
    84,180.68x = 125,581.05 × 81,892.52
  4. Step 4: Simplify right side
    84,180.68x = 10,284,148,648.75
  5. Step 5: Solve for x
    x = 10,284,148,648.75/84,180.68
  6. Step 6: Final answer
    x = 122,167.56

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.