Home / 109,716.70-151,469.30-68,923.38

Finding the Fourth Proportional to 109,716.70, 151,469.30 and 68,923.38

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Solution

The fourth proportional to 109,716.70, 151,469.30 and 68,923.38 is: 95,152.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,716.70 : 151,469.30 = 68,923.38 : x
  2. Step 2: Convert to fraction form
    109,716.70/151,469.30 = 68,923.38/x
  3. Step 3: Cross multiply
    109,716.70x = 151,469.30 × 68,923.38
  4. Step 4: Simplify right side
    109,716.70x = 10,439,776,122.23
  5. Step 5: Solve for x
    x = 10,439,776,122.23/109,716.70
  6. Step 6: Final answer
    x = 95,152.12

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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.