Home / 120,040.48-165,647.34-66,324.94

Finding the Fourth Proportional to 120,040.48, 165,647.34 and 66,324.94

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Solution

The fourth proportional to 120,040.48, 165,647.34 and 66,324.94 is: 91,523.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,040.48 : 165,647.34 = 66,324.94 : x
  2. Step 2: Convert to fraction form
    120,040.48/165,647.34 = 66,324.94/x
  3. Step 3: Cross multiply
    120,040.48x = 165,647.34 × 66,324.94
  4. Step 4: Simplify right side
    120,040.48x = 10,986,549,886.66
  5. Step 5: Solve for x
    x = 10,986,549,886.66/120,040.48
  6. Step 6: Final answer
    x = 91,523.71

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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.