Home / 120,964.05-166,926.69-66,516.12

Finding the Fourth Proportional to 120,964.05, 166,926.69 and 66,516.12

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Solution

The fourth proportional to 120,964.05, 166,926.69 and 66,516.12 is: 91,790.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,964.05 : 166,926.69 = 66,516.12 : x
  2. Step 2: Convert to fraction form
    120,964.05/166,926.69 = 66,516.12/x
  3. Step 3: Cross multiply
    120,964.05x = 166,926.69 × 66,516.12
  4. Step 4: Simplify right side
    120,964.05x = 11,103,315,743.24
  5. Step 5: Solve for x
    x = 11,103,315,743.24/120,964.05
  6. Step 6: Final answer
    x = 91,790.21

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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.