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Finding the Fourth Proportional to 126,257.27, 188,918.12 and 101,221.58

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Solution

The fourth proportional to 126,257.27, 188,918.12 and 101,221.58 is: 151,457.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,257.27 : 188,918.12 = 101,221.58 : x
  2. Step 2: Convert to fraction form
    126,257.27/188,918.12 = 101,221.58/x
  3. Step 3: Cross multiply
    126,257.27x = 188,918.12 × 101,221.58
  4. Step 4: Simplify right side
    126,257.27x = 19,122,591,322.38
  5. Step 5: Solve for x
    x = 19,122,591,322.38/126,257.27
  6. Step 6: Final answer
    x = 151,457.35

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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.