Home / 122,788.44-169,472.25-79,821.18

Finding the Fourth Proportional to 122,788.44, 169,472.25 and 79,821.18

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Solution

The fourth proportional to 122,788.44, 169,472.25 and 79,821.18 is: 110,168.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,788.44 : 169,472.25 = 79,821.18 : x
  2. Step 2: Convert to fraction form
    122,788.44/169,472.25 = 79,821.18/x
  3. Step 3: Cross multiply
    122,788.44x = 169,472.25 × 79,821.18
  4. Step 4: Simplify right side
    122,788.44x = 13,527,474,972.26
  5. Step 5: Solve for x
    x = 13,527,474,972.26/122,788.44
  6. Step 6: Final answer
    x = 110,168.96

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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.