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Finding the Fourth Proportional to 122,589.84, 169,178.34 and 68,873.78

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Solution

The fourth proportional to 122,589.84, 169,178.34 and 68,873.78 is: 95,048.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,589.84 : 169,178.34 = 68,873.78 : x
  2. Step 2: Convert to fraction form
    122,589.84/169,178.34 = 68,873.78/x
  3. Step 3: Cross multiply
    122,589.84x = 169,178.34 × 68,873.78
  4. Step 4: Simplify right side
    122,589.84x = 11,651,951,769.93
  5. Step 5: Solve for x
    x = 11,651,951,769.93/122,589.84
  6. Step 6: Final answer
    x = 95,048.27

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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.