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Finding the Fourth Proportional to 122,223.39, 168,692.00 and 79,708.11

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Solution

The fourth proportional to 122,223.39, 168,692.00 and 79,708.11 is: 110,012.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,223.39 : 168,692.00 = 79,708.11 : x
  2. Step 2: Convert to fraction form
    122,223.39/168,692.00 = 79,708.11/x
  3. Step 3: Cross multiply
    122,223.39x = 168,692.00 × 79,708.11
  4. Step 4: Simplify right side
    122,223.39x = 13,446,120,093.58
  5. Step 5: Solve for x
    x = 13,446,120,093.58/122,223.39
  6. Step 6: Final answer
    x = 110,012.66

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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.