Home / 218,131.07-327,371.58-112,980.11

Finding the Fourth Proportional to 218,131.07, 327,371.58 and 112,980.11

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Solution

The fourth proportional to 218,131.07, 327,371.58 and 112,980.11 is: 169,560.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,131.07 : 327,371.58 = 112,980.11 : x
  2. Step 2: Convert to fraction form
    218,131.07/327,371.58 = 112,980.11/x
  3. Step 3: Cross multiply
    218,131.07x = 327,371.58 × 112,980.11
  4. Step 4: Simplify right side
    218,131.07x = 36,986,475,482.42
  5. Step 5: Solve for x
    x = 36,986,475,482.42/218,131.07
  6. Step 6: Final answer
    x = 169,560.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.