Home / 120,951.12-181,520.54-83,771.67

Finding the Fourth Proportional to 120,951.12, 181,520.54 and 83,771.67

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Solution

The fourth proportional to 120,951.12, 181,520.54 and 83,771.67 is: 125,722.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,951.12 : 181,520.54 = 83,771.67 : x
  2. Step 2: Convert to fraction form
    120,951.12/181,520.54 = 83,771.67/x
  3. Step 3: Cross multiply
    120,951.12x = 181,520.54 × 83,771.67
  4. Step 4: Simplify right side
    120,951.12x = 15,206,278,801.25
  5. Step 5: Solve for x
    x = 15,206,278,801.25/120,951.12
  6. Step 6: Final answer
    x = 125,722.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.