Home / 136,450.89-188,174.51-107,838.91

Finding the Fourth Proportional to 136,450.89, 188,174.51 and 107,838.91

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Solution

The fourth proportional to 136,450.89, 188,174.51 and 107,838.91 is: 148,716.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,450.89 : 188,174.51 = 107,838.91 : x
  2. Step 2: Convert to fraction form
    136,450.89/188,174.51 = 107,838.91/x
  3. Step 3: Cross multiply
    136,450.89x = 188,174.51 × 107,838.91
  4. Step 4: Simplify right side
    136,450.89x = 20,292,534,578.78
  5. Step 5: Solve for x
    x = 20,292,534,578.78/136,450.89
  6. Step 6: Final answer
    x = 148,716.76

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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.