Home / 120,518.75-166,323.89-66,806.03

Finding the Fourth Proportional to 120,518.75, 166,323.89 and 66,806.03

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Solution

The fourth proportional to 120,518.75, 166,323.89 and 66,806.03 is: 92,196.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,518.75 : 166,323.89 = 66,806.03 : x
  2. Step 2: Convert to fraction form
    120,518.75/166,323.89 = 66,806.03/x
  3. Step 3: Cross multiply
    120,518.75x = 166,323.89 × 66,806.03
  4. Step 4: Simplify right side
    120,518.75x = 11,111,438,866.84
  5. Step 5: Solve for x
    x = 11,111,438,866.84/120,518.75
  6. Step 6: Final answer
    x = 92,196.76

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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.