Home / 120,348.81-166,082.67-66,634.77

Finding the Fourth Proportional to 120,348.81, 166,082.67 and 66,634.77

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Solution

The fourth proportional to 120,348.81, 166,082.67 and 66,634.77 is: 91,956.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,348.81 : 166,082.67 = 66,634.77 : x
  2. Step 2: Convert to fraction form
    120,348.81/166,082.67 = 66,634.77/x
  3. Step 3: Cross multiply
    120,348.81x = 166,082.67 × 66,634.77
  4. Step 4: Simplify right side
    120,348.81x = 11,066,880,516.44
  5. Step 5: Solve for x
    x = 11,066,880,516.44/120,348.81
  6. Step 6: Final answer
    x = 91,956.71

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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.