Home / 120,422.58-166,183.16-66,711.07

Finding the Fourth Proportional to 120,422.58, 166,183.16 and 66,711.07

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Solution

The fourth proportional to 120,422.58, 166,183.16 and 66,711.07 is: 92,061.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,422.58 : 166,183.16 = 66,711.07 : x
  2. Step 2: Convert to fraction form
    120,422.58/166,183.16 = 66,711.07/x
  3. Step 3: Cross multiply
    120,422.58x = 166,183.16 × 66,711.07
  4. Step 4: Simplify right side
    120,422.58x = 11,086,256,419.58
  5. Step 5: Solve for x
    x = 11,086,256,419.58/120,422.58
  6. Step 6: Final answer
    x = 92,061.28

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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.