Home / 204,036.40-281,561.16-113,398.72

Finding the Fourth Proportional to 204,036.40, 281,561.16 and 113,398.72

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Solution

The fourth proportional to 204,036.40, 281,561.16 and 113,398.72 is: 156,485.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,036.40 : 281,561.16 = 113,398.72 : x
  2. Step 2: Convert to fraction form
    204,036.40/281,561.16 = 113,398.72/x
  3. Step 3: Cross multiply
    204,036.40x = 281,561.16 × 113,398.72
  4. Step 4: Simplify right side
    204,036.40x = 31,928,675,145.72
  5. Step 5: Solve for x
    x = 31,928,675,145.72/204,036.40
  6. Step 6: Final answer
    x = 156,485.19

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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.