Home / 120,521.75-166,302.56-66,806.75

Finding the Fourth Proportional to 120,521.75, 166,302.56 and 66,806.75

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Solution

The fourth proportional to 120,521.75, 166,302.56 and 66,806.75 is: 92,183.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,521.75 : 166,302.56 = 66,806.75 : x
  2. Step 2: Convert to fraction form
    120,521.75/166,302.56 = 66,806.75/x
  3. Step 3: Cross multiply
    120,521.75x = 166,302.56 × 66,806.75
  4. Step 4: Simplify right side
    120,521.75x = 11,110,133,216.25
  5. Step 5: Solve for x
    x = 11,110,133,216.25/120,521.75
  6. Step 6: Final answer
    x = 92,183.64

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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.