Home / 120,857.74-166,788.38-82,697.29

Finding the Fourth Proportional to 120,857.74, 166,788.38 and 82,697.29

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Solution

The fourth proportional to 120,857.74, 166,788.38 and 82,697.29 is: 114,125.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,857.74 : 166,788.38 = 82,697.29 : x
  2. Step 2: Convert to fraction form
    120,857.74/166,788.38 = 82,697.29/x
  3. Step 3: Cross multiply
    120,857.74x = 166,788.38 × 82,697.29
  4. Step 4: Simplify right side
    120,857.74x = 13,792,947,029.49
  5. Step 5: Solve for x
    x = 13,792,947,029.49/120,857.74
  6. Step 6: Final answer
    x = 114,125.48

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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.