Home / 120,014.48-165,629.68-66,304.20

Finding the Fourth Proportional to 120,014.48, 165,629.68 and 66,304.20

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Solution

The fourth proportional to 120,014.48, 165,629.68 and 66,304.20 is: 91,505.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,014.48 : 165,629.68 = 66,304.20 : x
  2. Step 2: Convert to fraction form
    120,014.48/165,629.68 = 66,304.20/x
  3. Step 3: Cross multiply
    120,014.48x = 165,629.68 × 66,304.20
  4. Step 4: Simplify right side
    120,014.48x = 10,981,943,428.66
  5. Step 5: Solve for x
    x = 10,981,943,428.66/120,014.48
  6. Step 6: Final answer
    x = 91,505.15

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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.