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Finding the Fourth Proportional to 199,315.60, 275,045.16 and 123,862.48

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Solution

The fourth proportional to 199,315.60, 275,045.16 and 123,862.48 is: 170,923.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,315.60 : 275,045.16 = 123,862.48 : x
  2. Step 2: Convert to fraction form
    199,315.60/275,045.16 = 123,862.48/x
  3. Step 3: Cross multiply
    199,315.60x = 275,045.16 × 123,862.48
  4. Step 4: Simplify right side
    199,315.60x = 34,067,775,629.60
  5. Step 5: Solve for x
    x = 34,067,775,629.60/199,315.60
  6. Step 6: Final answer
    x = 170,923.78

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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.