Home / 123,348.70-170,221.92-66,760.07

Finding the Fourth Proportional to 123,348.70, 170,221.92 and 66,760.07

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Solution

The fourth proportional to 123,348.70, 170,221.92 and 66,760.07 is: 92,129.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,348.70 : 170,221.92 = 66,760.07 : x
  2. Step 2: Convert to fraction form
    123,348.70/170,221.92 = 66,760.07/x
  3. Step 3: Cross multiply
    123,348.70x = 170,221.92 × 66,760.07
  4. Step 4: Simplify right side
    123,348.70x = 11,364,027,294.73
  5. Step 5: Solve for x
    x = 11,364,027,294.73/123,348.70
  6. Step 6: Final answer
    x = 92,129.28

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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.