Home / 136,102.26-187,716.96-120,804.78

Finding the Fourth Proportional to 136,102.26, 187,716.96 and 120,804.78

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Solution

The fourth proportional to 136,102.26, 187,716.96 and 120,804.78 is: 166,618.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,102.26 : 187,716.96 = 120,804.78 : x
  2. Step 2: Convert to fraction form
    136,102.26/187,716.96 = 120,804.78/x
  3. Step 3: Cross multiply
    136,102.26x = 187,716.96 × 120,804.78
  4. Step 4: Simplify right side
    136,102.26x = 22,677,106,055.07
  5. Step 5: Solve for x
    x = 22,677,106,055.07/136,102.26
  6. Step 6: Final answer
    x = 166,618.14

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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.