Home / 120,500.03-166,287.47-66,784.56

Finding the Fourth Proportional to 120,500.03, 166,287.47 and 66,784.56

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Solution

The fourth proportional to 120,500.03, 166,287.47 and 66,784.56 is: 92,161.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,500.03 : 166,287.47 = 66,784.56 : x
  2. Step 2: Convert to fraction form
    120,500.03/166,287.47 = 66,784.56/x
  3. Step 3: Cross multiply
    120,500.03x = 166,287.47 × 66,784.56
  4. Step 4: Simplify right side
    120,500.03x = 11,105,435,183.54
  5. Step 5: Solve for x
    x = 11,105,435,183.54/120,500.03
  6. Step 6: Final answer
    x = 92,161.27

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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.