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Finding the Fourth Proportional to 123,869.55, 170,939.02 and 67,281.33

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Solution

The fourth proportional to 123,869.55, 170,939.02 and 67,281.33 is: 92,847.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,869.55 : 170,939.02 = 67,281.33 : x
  2. Step 2: Convert to fraction form
    123,869.55/170,939.02 = 67,281.33/x
  3. Step 3: Cross multiply
    123,869.55x = 170,939.02 × 67,281.33
  4. Step 4: Simplify right side
    123,869.55x = 11,501,004,614.50
  5. Step 5: Solve for x
    x = 11,501,004,614.50/123,869.55
  6. Step 6: Final answer
    x = 92,847.71

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.