Home / 120,022.64-165,629.99-66,304.15

Finding the Fourth Proportional to 120,022.64, 165,629.99 and 66,304.15

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Solution

The fourth proportional to 120,022.64, 165,629.99 and 66,304.15 is: 91,499.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,022.64 : 165,629.99 = 66,304.15 : x
  2. Step 2: Convert to fraction form
    120,022.64/165,629.99 = 66,304.15/x
  3. Step 3: Cross multiply
    120,022.64x = 165,629.99 × 66,304.15
  4. Step 4: Simplify right side
    120,022.64x = 10,981,955,453.14
  5. Step 5: Solve for x
    x = 10,981,955,453.14/120,022.64
  6. Step 6: Final answer
    x = 91,499.03

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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.