Home / 123,947.97-170,985.25-80,952.66

Finding the Fourth Proportional to 123,947.97, 170,985.25 and 80,952.66

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Solution

The fourth proportional to 123,947.97, 170,985.25 and 80,952.66 is: 111,673.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,947.97 : 170,985.25 = 80,952.66 : x
  2. Step 2: Convert to fraction form
    123,947.97/170,985.25 = 80,952.66/x
  3. Step 3: Cross multiply
    123,947.97x = 170,985.25 × 80,952.66
  4. Step 4: Simplify right side
    123,947.97x = 13,841,709,964.69
  5. Step 5: Solve for x
    x = 13,841,709,964.69/123,947.97
  6. Step 6: Final answer
    x = 111,673.55

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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.