Home / 136,906.11-188,982.40-103,013.13

Finding the Fourth Proportional to 136,906.11, 188,982.40 and 103,013.13

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Solution

The fourth proportional to 136,906.11, 188,982.40 and 103,013.13 is: 142,197.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,906.11 : 188,982.40 = 103,013.13 : x
  2. Step 2: Convert to fraction form
    136,906.11/188,982.40 = 103,013.13/x
  3. Step 3: Cross multiply
    136,906.11x = 188,982.40 × 103,013.13
  4. Step 4: Simplify right side
    136,906.11x = 19,467,668,538.91
  5. Step 5: Solve for x
    x = 19,467,668,538.91/136,906.11
  6. Step 6: Final answer
    x = 142,197.22

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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.