Home / 111,691.80-167,537.37-45,131.16

Finding the Fourth Proportional to 111,691.80, 167,537.37 and 45,131.16

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Solution

The fourth proportional to 111,691.80, 167,537.37 and 45,131.16 is: 67,696.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,691.80 : 167,537.37 = 45,131.16 : x
  2. Step 2: Convert to fraction form
    111,691.80/167,537.37 = 45,131.16/x
  3. Step 3: Cross multiply
    111,691.80x = 167,537.37 × 45,131.16
  4. Step 4: Simplify right side
    111,691.80x = 7,561,155,851.45
  5. Step 5: Solve for x
    x = 7,561,155,851.45/111,691.80
  6. Step 6: Final answer
    x = 67,696.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.