Home / 120,479.14-166,262.20-66,765.05

Finding the Fourth Proportional to 120,479.14, 166,262.20 and 66,765.05

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Solution

The fourth proportional to 120,479.14, 166,262.20 and 66,765.05 is: 92,136.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,479.14 : 166,262.20 = 66,765.05 : x
  2. Step 2: Convert to fraction form
    120,479.14/166,262.20 = 66,765.05/x
  3. Step 3: Cross multiply
    120,479.14x = 166,262.20 × 66,765.05
  4. Step 4: Simplify right side
    120,479.14x = 11,100,504,096.11
  5. Step 5: Solve for x
    x = 11,100,504,096.11/120,479.14
  6. Step 6: Final answer
    x = 92,136.32

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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.