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Finding the Fourth Proportional to 123,881, 170,958.90 and 67,292.36

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Solution

The fourth proportional to 123,881, 170,958.90 and 67,292.36 is: 92,865.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,881 : 170,958.90 = 67,292.36 : x
  2. Step 2: Convert to fraction form
    123,881/170,958.90 = 67,292.36/x
  3. Step 3: Cross multiply
    123,881x = 170,958.90 × 67,292.36
  4. Step 4: Simplify right side
    123,881x = 11,504,227,844.00
  5. Step 5: Solve for x
    x = 11,504,227,844.00/123,881
  6. Step 6: Final answer
    x = 92,865.15

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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.