Home / 120,518.57-166,323.63-66,805.85

Finding the Fourth Proportional to 120,518.57, 166,323.63 and 66,805.85

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Solution

The fourth proportional to 120,518.57, 166,323.63 and 66,805.85 is: 92,196.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,518.57 : 166,323.63 = 66,805.85 : x
  2. Step 2: Convert to fraction form
    120,518.57/166,323.63 = 66,805.85/x
  3. Step 3: Cross multiply
    120,518.57x = 166,323.63 × 66,805.85
  4. Step 4: Simplify right side
    120,518.57x = 11,111,391,477.24
  5. Step 5: Solve for x
    x = 11,111,391,477.24/120,518.57
  6. Step 6: Final answer
    x = 92,196.51

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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.