Home / 122,736.14-169,292.58-79,638.62

Finding the Fourth Proportional to 122,736.14, 169,292.58 and 79,638.62

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Solution

The fourth proportional to 122,736.14, 169,292.58 and 79,638.62 is: 109,847.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,736.14 : 169,292.58 = 79,638.62 : x
  2. Step 2: Convert to fraction form
    122,736.14/169,292.58 = 79,638.62/x
  3. Step 3: Cross multiply
    122,736.14x = 169,292.58 × 79,638.62
  4. Step 4: Simplify right side
    122,736.14x = 13,482,227,447.44
  5. Step 5: Solve for x
    x = 13,482,227,447.44/122,736.14
  6. Step 6: Final answer
    x = 109,847.25

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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.