Home / 111,890.40-167,836.02-45,331.80

Finding the Fourth Proportional to 111,890.40, 167,836.02 and 45,331.80

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Solution

The fourth proportional to 111,890.40, 167,836.02 and 45,331.80 is: 67,997.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,890.40 : 167,836.02 = 45,331.80 : x
  2. Step 2: Convert to fraction form
    111,890.40/167,836.02 = 45,331.80/x
  3. Step 3: Cross multiply
    111,890.40x = 167,836.02 × 45,331.80
  4. Step 4: Simplify right side
    111,890.40x = 7,608,308,891.44
  5. Step 5: Solve for x
    x = 7,608,308,891.44/111,890.40
  6. Step 6: Final answer
    x = 67,997.87

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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.