Home / 120,521.19-166,301.78-66,806.19

Finding the Fourth Proportional to 120,521.19, 166,301.78 and 66,806.19

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Solution

The fourth proportional to 120,521.19, 166,301.78 and 66,806.19 is: 92,182.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,521.19 : 166,301.78 = 66,806.19 : x
  2. Step 2: Convert to fraction form
    120,521.19/166,301.78 = 66,806.19/x
  3. Step 3: Cross multiply
    120,521.19x = 166,301.78 × 66,806.19
  4. Step 4: Simplify right side
    120,521.19x = 11,109,988,312.02
  5. Step 5: Solve for x
    x = 11,109,988,312.02/120,521.19
  6. Step 6: Final answer
    x = 92,182.86

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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.