Home / 100,781.14-151,187.94-34,214.26

Finding the Fourth Proportional to 100,781.14, 151,187.94 and 34,214.26

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Solution

The fourth proportional to 100,781.14, 151,187.94 and 34,214.26 is: 51,326.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,781.14 : 151,187.94 = 34,214.26 : x
  2. Step 2: Convert to fraction form
    100,781.14/151,187.94 = 34,214.26/x
  3. Step 3: Cross multiply
    100,781.14x = 151,187.94 × 34,214.26
  4. Step 4: Simplify right side
    100,781.14x = 5,172,783,488.02
  5. Step 5: Solve for x
    x = 5,172,783,488.02/100,781.14
  6. Step 6: Final answer
    x = 51,326.90

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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.