Home / 201,932.27-278,679.69-115,919.11

Finding the Fourth Proportional to 201,932.27, 278,679.69 and 115,919.11

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Solution

The fourth proportional to 201,932.27, 278,679.69 and 115,919.11 is: 159,975.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,932.27 : 278,679.69 = 115,919.11 : x
  2. Step 2: Convert to fraction form
    201,932.27/278,679.69 = 115,919.11/x
  3. Step 3: Cross multiply
    201,932.27x = 278,679.69 × 115,919.11
  4. Step 4: Simplify right side
    201,932.27x = 32,304,300,943.18
  5. Step 5: Solve for x
    x = 32,304,300,943.18/201,932.27
  6. Step 6: Final answer
    x = 159,975.93

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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.