Home / 120,019.24-165,626.32-66,304.09

Finding the Fourth Proportional to 120,019.24, 165,626.32 and 66,304.09

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Solution

The fourth proportional to 120,019.24, 165,626.32 and 66,304.09 is: 91,499.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,019.24 : 165,626.32 = 66,304.09 : x
  2. Step 2: Convert to fraction form
    120,019.24/165,626.32 = 66,304.09/x
  3. Step 3: Cross multiply
    120,019.24x = 165,626.32 × 66,304.09
  4. Step 4: Simplify right side
    120,019.24x = 10,981,701,268.00
  5. Step 5: Solve for x
    x = 10,981,701,268.00/120,019.24
  6. Step 6: Final answer
    x = 91,499.51

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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.