Home / 123,659.39-170,649.92-69,943.23

Finding the Fourth Proportional to 123,659.39, 170,649.92 and 69,943.23

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Solution

The fourth proportional to 123,659.39, 170,649.92 and 69,943.23 is: 96,521.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,659.39 : 170,649.92 = 69,943.23 : x
  2. Step 2: Convert to fraction form
    123,659.39/170,649.92 = 69,943.23/x
  3. Step 3: Cross multiply
    123,659.39x = 170,649.92 × 69,943.23
  4. Step 4: Simplify right side
    123,659.39x = 11,935,806,778.90
  5. Step 5: Solve for x
    x = 11,935,806,778.90/123,659.39
  6. Step 6: Final answer
    x = 96,521.64

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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.