Home / 120,014.48-165,629.67-66,304.19

Finding the Fourth Proportional to 120,014.48, 165,629.67 and 66,304.19

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Solution

The fourth proportional to 120,014.48, 165,629.67 and 66,304.19 is: 91,505.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,014.48 : 165,629.67 = 66,304.19 : x
  2. Step 2: Convert to fraction form
    120,014.48/165,629.67 = 66,304.19/x
  3. Step 3: Cross multiply
    120,014.48x = 165,629.67 × 66,304.19
  4. Step 4: Simplify right side
    120,014.48x = 10,981,941,109.32
  5. Step 5: Solve for x
    x = 10,981,941,109.32/120,014.48
  6. Step 6: Final answer
    x = 91,505.13

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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.