Home / 136,107.81-187,972.25-121,265.37

Finding the Fourth Proportional to 136,107.81, 187,972.25 and 121,265.37

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Solution

The fourth proportional to 136,107.81, 187,972.25 and 121,265.37 is: 167,474.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,107.81 : 187,972.25 = 121,265.37 : x
  2. Step 2: Convert to fraction form
    136,107.81/187,972.25 = 121,265.37/x
  3. Step 3: Cross multiply
    136,107.81x = 187,972.25 × 121,265.37
  4. Step 4: Simplify right side
    136,107.81x = 22,794,523,839.66
  5. Step 5: Solve for x
    x = 22,794,523,839.66/136,107.81
  6. Step 6: Final answer
    x = 167,474.03

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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.