Home / 109,025.80-150,456.96-66,004.72

Finding the Fourth Proportional to 109,025.80, 150,456.96 and 66,004.72

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Solution

The fourth proportional to 109,025.80, 150,456.96 and 66,004.72 is: 91,087.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,025.80 : 150,456.96 = 66,004.72 : x
  2. Step 2: Convert to fraction form
    109,025.80/150,456.96 = 66,004.72/x
  3. Step 3: Cross multiply
    109,025.80x = 150,456.96 × 66,004.72
  4. Step 4: Simplify right side
    109,025.80x = 9,930,869,516.85
  5. Step 5: Solve for x
    x = 9,930,869,516.85/109,025.80
  6. Step 6: Final answer
    x = 91,087.33

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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.