Home / 120,505.06-166,306.94-66,806.92

Finding the Fourth Proportional to 120,505.06, 166,306.94 and 66,806.92

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Solution

The fourth proportional to 120,505.06, 166,306.94 and 66,806.92 is: 92,199.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,505.06 : 166,306.94 = 66,806.92 : x
  2. Step 2: Convert to fraction form
    120,505.06/166,306.94 = 66,806.92/x
  3. Step 3: Cross multiply
    120,505.06x = 166,306.94 × 66,806.92
  4. Step 4: Simplify right side
    120,505.06x = 11,110,454,436.02
  5. Step 5: Solve for x
    x = 11,110,454,436.02/120,505.06
  6. Step 6: Final answer
    x = 92,199.07

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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.