Home / 123,519.30-170,456.48-66,930.66

Finding the Fourth Proportional to 123,519.30, 170,456.48 and 66,930.66

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Solution

The fourth proportional to 123,519.30, 170,456.48 and 66,930.66 is: 92,364.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,519.30 : 170,456.48 = 66,930.66 : x
  2. Step 2: Convert to fraction form
    123,519.30/170,456.48 = 66,930.66/x
  3. Step 3: Cross multiply
    123,519.30x = 170,456.48 × 66,930.66
  4. Step 4: Simplify right side
    123,519.30x = 11,408,764,707.68
  5. Step 5: Solve for x
    x = 11,408,764,707.68/123,519.30
  6. Step 6: Final answer
    x = 92,364.23

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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.