Home / 123,680.62-170,679.31-69,964.49

Finding the Fourth Proportional to 123,680.62, 170,679.31 and 69,964.49

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Solution

The fourth proportional to 123,680.62, 170,679.31 and 69,964.49 is: 96,551.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,680.62 : 170,679.31 = 69,964.49 : x
  2. Step 2: Convert to fraction form
    123,680.62/170,679.31 = 69,964.49/x
  3. Step 3: Cross multiply
    123,680.62x = 170,679.31 × 69,964.49
  4. Step 4: Simplify right side
    123,680.62x = 11,941,491,129.49
  5. Step 5: Solve for x
    x = 11,941,491,129.49/123,680.62
  6. Step 6: Final answer
    x = 96,551.03

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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.