Home / 115,972.58-173,810.18-100,917.11

Finding the Fourth Proportional to 115,972.58, 173,810.18 and 100,917.11

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Solution

The fourth proportional to 115,972.58, 173,810.18 and 100,917.11 is: 151,246.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,972.58 : 173,810.18 = 100,917.11 : x
  2. Step 2: Convert to fraction form
    115,972.58/173,810.18 = 100,917.11/x
  3. Step 3: Cross multiply
    115,972.58x = 173,810.18 × 100,917.11
  4. Step 4: Simplify right side
    115,972.58x = 17,540,419,680.54
  5. Step 5: Solve for x
    x = 17,540,419,680.54/115,972.58
  6. Step 6: Final answer
    x = 151,246.27

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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.