Home / 123,680.49-170,679.14-69,964.37

Finding the Fourth Proportional to 123,680.49, 170,679.14 and 69,964.37

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Solution

The fourth proportional to 123,680.49, 170,679.14 and 69,964.37 is: 96,550.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,680.49 : 170,679.14 = 69,964.37 : x
  2. Step 2: Convert to fraction form
    123,680.49/170,679.14 = 69,964.37/x
  3. Step 3: Cross multiply
    123,680.49x = 170,679.14 × 69,964.37
  4. Step 4: Simplify right side
    123,680.49x = 11,941,458,502.24
  5. Step 5: Solve for x
    x = 11,941,458,502.24/123,680.49
  6. Step 6: Final answer
    x = 96,550.87

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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.