Home / 123,348.97-170,222.10-66,760.35

Finding the Fourth Proportional to 123,348.97, 170,222.10 and 66,760.35

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Solution

The fourth proportional to 123,348.97, 170,222.10 and 66,760.35 is: 92,129.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,348.97 : 170,222.10 = 66,760.35 : x
  2. Step 2: Convert to fraction form
    123,348.97/170,222.10 = 66,760.35/x
  3. Step 3: Cross multiply
    123,348.97x = 170,222.10 × 66,760.35
  4. Step 4: Simplify right side
    123,348.97x = 11,364,086,085.05
  5. Step 5: Solve for x
    x = 11,364,086,085.05/123,348.97
  6. Step 6: Final answer
    x = 92,129.56

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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.