Home / 120,250.86-165,939.26-66,532.67

Finding the Fourth Proportional to 120,250.86, 165,939.26 and 66,532.67

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Solution

The fourth proportional to 120,250.86, 165,939.26 and 66,532.67 is: 91,811.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,250.86 : 165,939.26 = 66,532.67 : x
  2. Step 2: Convert to fraction form
    120,250.86/165,939.26 = 66,532.67/x
  3. Step 3: Cross multiply
    120,250.86x = 165,939.26 × 66,532.67
  4. Step 4: Simplify right side
    120,250.86x = 11,040,382,107.81
  5. Step 5: Solve for x
    x = 11,040,382,107.81/120,250.86
  6. Step 6: Final answer
    x = 91,811.25

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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.