Home / 109,872.56-164,639.21-74,194.06

Finding the Fourth Proportional to 109,872.56, 164,639.21 and 74,194.06

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Solution

The fourth proportional to 109,872.56, 164,639.21 and 74,194.06 is: 111,176.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,872.56 : 164,639.21 = 74,194.06 : x
  2. Step 2: Convert to fraction form
    109,872.56/164,639.21 = 74,194.06/x
  3. Step 3: Cross multiply
    109,872.56x = 164,639.21 × 74,194.06
  4. Step 4: Simplify right side
    109,872.56x = 12,215,251,425.09
  5. Step 5: Solve for x
    x = 12,215,251,425.09/109,872.56
  6. Step 6: Final answer
    x = 111,176.54

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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.