Home / 120,020.24-165,627.41-66,305.27

Finding the Fourth Proportional to 120,020.24, 165,627.41 and 66,305.27

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Solution

The fourth proportional to 120,020.24, 165,627.41 and 66,305.27 is: 91,500.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,020.24 : 165,627.41 = 66,305.27 : x
  2. Step 2: Convert to fraction form
    120,020.24/165,627.41 = 66,305.27/x
  3. Step 3: Cross multiply
    120,020.24x = 165,627.41 × 66,305.27
  4. Step 4: Simplify right side
    120,020.24x = 10,981,968,979.79
  5. Step 5: Solve for x
    x = 10,981,968,979.79/120,020.24
  6. Step 6: Final answer
    x = 91,500.98

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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.