Home / 135,632.25-187,142.26-81,175.95

Finding the Fourth Proportional to 135,632.25, 187,142.26 and 81,175.95

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Solution

The fourth proportional to 135,632.25, 187,142.26 and 81,175.95 is: 112,004.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,632.25 : 187,142.26 = 81,175.95 : x
  2. Step 2: Convert to fraction form
    135,632.25/187,142.26 = 81,175.95/x
  3. Step 3: Cross multiply
    135,632.25x = 187,142.26 × 81,175.95
  4. Step 4: Simplify right side
    135,632.25x = 15,191,450,740.65
  5. Step 5: Solve for x
    x = 15,191,450,740.65/135,632.25
  6. Step 6: Final answer
    x = 112,004.71

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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.