Home / 138,904.03-208,224.82-126,175.69

Finding the Fourth Proportional to 138,904.03, 208,224.82 and 126,175.69

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Solution

The fourth proportional to 138,904.03, 208,224.82 and 126,175.69 is: 189,144.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,904.03 : 208,224.82 = 126,175.69 : x
  2. Step 2: Convert to fraction form
    138,904.03/208,224.82 = 126,175.69/x
  3. Step 3: Cross multiply
    138,904.03x = 208,224.82 × 126,175.69
  4. Step 4: Simplify right side
    138,904.03x = 26,272,910,338.63
  5. Step 5: Solve for x
    x = 26,272,910,338.63/138,904.03
  6. Step 6: Final answer
    x = 189,144.33

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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.