Home / 120,601.68-166,419.12-66,885.72

Finding the Fourth Proportional to 120,601.68, 166,419.12 and 66,885.72

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Solution

The fourth proportional to 120,601.68, 166,419.12 and 66,885.72 is: 92,296.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,601.68 : 166,419.12 = 66,885.72 : x
  2. Step 2: Convert to fraction form
    120,601.68/166,419.12 = 66,885.72/x
  3. Step 3: Cross multiply
    120,601.68x = 166,419.12 × 66,885.72
  4. Step 4: Simplify right side
    120,601.68x = 11,131,062,662.97
  5. Step 5: Solve for x
    x = 11,131,062,662.97/120,601.68
  6. Step 6: Final answer
    x = 92,296.08

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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.