Home / 120,924.77-166,922.69-80,623.80

Finding the Fourth Proportional to 120,924.77, 166,922.69 and 80,623.80

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Solution

The fourth proportional to 120,924.77, 166,922.69 and 80,623.80 is: 111,291.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,924.77 : 166,922.69 = 80,623.80 : x
  2. Step 2: Convert to fraction form
    120,924.77/166,922.69 = 80,623.80/x
  3. Step 3: Cross multiply
    120,924.77x = 166,922.69 × 80,623.80
  4. Step 4: Simplify right side
    120,924.77x = 13,457,941,170.90
  5. Step 5: Solve for x
    x = 13,457,941,170.90/120,924.77
  6. Step 6: Final answer
    x = 111,291.85

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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.