Home / 111,918.80-167,724.60-91,182.80

Finding the Fourth Proportional to 111,918.80, 167,724.60 and 91,182.80

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Solution

The fourth proportional to 111,918.80, 167,724.60 and 91,182.80 is: 136,649.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,918.80 : 167,724.60 = 91,182.80 : x
  2. Step 2: Convert to fraction form
    111,918.80/167,724.60 = 91,182.80/x
  3. Step 3: Cross multiply
    111,918.80x = 167,724.60 × 91,182.80
  4. Step 4: Simplify right side
    111,918.80x = 15,293,598,656.88
  5. Step 5: Solve for x
    x = 15,293,598,656.88/111,918.80
  6. Step 6: Final answer
    x = 136,649.06

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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.