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Finding the Fourth Proportional to 123,939.18, 171,037.11 and 67,350.54

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Solution

The fourth proportional to 123,939.18, 171,037.11 and 67,350.54 is: 92,944.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,939.18 : 171,037.11 = 67,350.54 : x
  2. Step 2: Convert to fraction form
    123,939.18/171,037.11 = 67,350.54/x
  3. Step 3: Cross multiply
    123,939.18x = 171,037.11 × 67,350.54
  4. Step 4: Simplify right side
    123,939.18x = 11,519,441,718.54
  5. Step 5: Solve for x
    x = 11,519,441,718.54/123,939.18
  6. Step 6: Final answer
    x = 92,944.31

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1.5x scale

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.