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Finding the Fourth Proportional to 123,940.96, 171,040.08 and 67,353.28

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Solution

The fourth proportional to 123,940.96, 171,040.08 and 67,353.28 is: 92,948.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,940.96 : 171,040.08 = 67,353.28 : x
  2. Step 2: Convert to fraction form
    123,940.96/171,040.08 = 67,353.28/x
  3. Step 3: Cross multiply
    123,940.96x = 171,040.08 × 67,353.28
  4. Step 4: Simplify right side
    123,940.96x = 11,520,110,399.46
  5. Step 5: Solve for x
    x = 11,520,110,399.46/123,940.96
  6. Step 6: Final answer
    x = 92,948.37

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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.