Home / 120,518.82-166,323.97-66,806.10

Finding the Fourth Proportional to 120,518.82, 166,323.97 and 66,806.10

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Solution

The fourth proportional to 120,518.82, 166,323.97 and 66,806.10 is: 92,196.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,518.82 : 166,323.97 = 66,806.10 : x
  2. Step 2: Convert to fraction form
    120,518.82/166,323.97 = 66,806.10/x
  3. Step 3: Cross multiply
    120,518.82x = 166,323.97 × 66,806.10
  4. Step 4: Simplify right side
    120,518.82x = 11,111,455,772.22
  5. Step 5: Solve for x
    x = 11,111,455,772.22/120,518.82
  6. Step 6: Final answer
    x = 92,196.85

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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.