Home / 220,767.90-331,201.22-80,526.52

Finding the Fourth Proportional to 220,767.90, 331,201.22 and 80,526.52

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Solution

The fourth proportional to 220,767.90, 331,201.22 and 80,526.52 is: 120,807.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,767.90 : 331,201.22 = 80,526.52 : x
  2. Step 2: Convert to fraction form
    220,767.90/331,201.22 = 80,526.52/x
  3. Step 3: Cross multiply
    220,767.90x = 331,201.22 × 80,526.52
  4. Step 4: Simplify right side
    220,767.90x = 26,670,482,130.69
  5. Step 5: Solve for x
    x = 26,670,482,130.69/220,767.90
  6. Step 6: Final answer
    x = 120,807.79

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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.