Home / 218,135.39-327,378.06-112,984.43

Finding the Fourth Proportional to 218,135.39, 327,378.06 and 112,984.43

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Solution

The fourth proportional to 218,135.39, 327,378.06 and 112,984.43 is: 169,567.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,135.39 : 327,378.06 = 112,984.43 : x
  2. Step 2: Convert to fraction form
    218,135.39/327,378.06 = 112,984.43/x
  3. Step 3: Cross multiply
    218,135.39x = 327,378.06 × 112,984.43
  4. Step 4: Simplify right side
    218,135.39x = 36,988,621,866.72
  5. Step 5: Solve for x
    x = 36,988,621,866.72/218,135.39
  6. Step 6: Final answer
    x = 169,567.27

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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.