Home / 120,169.26-179,921.67-90,497.13

Finding the Fourth Proportional to 120,169.26, 179,921.67 and 90,497.13

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Solution

The fourth proportional to 120,169.26, 179,921.67 and 90,497.13 is: 135,495.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,169.26 : 179,921.67 = 90,497.13 : x
  2. Step 2: Convert to fraction form
    120,169.26/179,921.67 = 90,497.13/x
  3. Step 3: Cross multiply
    120,169.26x = 179,921.67 × 90,497.13
  4. Step 4: Simplify right side
    120,169.26x = 16,282,394,759.81
  5. Step 5: Solve for x
    x = 16,282,394,759.81/120,169.26
  6. Step 6: Final answer
    x = 135,495.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.