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Finding the Fourth Proportional to 122,272.98, 168,674.61 and 79,856.34

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Solution

The fourth proportional to 122,272.98, 168,674.61 and 79,856.34 is: 110,161.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,272.98 : 168,674.61 = 79,856.34 : x
  2. Step 2: Convert to fraction form
    122,272.98/168,674.61 = 79,856.34/x
  3. Step 3: Cross multiply
    122,272.98x = 168,674.61 × 79,856.34
  4. Step 4: Simplify right side
    122,272.98x = 13,469,737,005.53
  5. Step 5: Solve for x
    x = 13,469,737,005.53/122,272.98
  6. Step 6: Final answer
    x = 110,161.19

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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.