Home / 204,117.12-281,687.40-123,559.20

Finding the Fourth Proportional to 204,117.12, 281,687.40 and 123,559.20

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Solution

The fourth proportional to 204,117.12, 281,687.40 and 123,559.20 is: 170,515.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,117.12 : 281,687.40 = 123,559.20 : x
  2. Step 2: Convert to fraction form
    204,117.12/281,687.40 = 123,559.20/x
  3. Step 3: Cross multiply
    204,117.12x = 281,687.40 × 123,559.20
  4. Step 4: Simplify right side
    204,117.12x = 34,805,069,794.08
  5. Step 5: Solve for x
    x = 34,805,069,794.08/204,117.12
  6. Step 6: Final answer
    x = 170,515.19

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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.