Home / 123,366.96-170,245.68-66,778.32

Finding the Fourth Proportional to 123,366.96, 170,245.68 and 66,778.32

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Solution

The fourth proportional to 123,366.96, 170,245.68 and 66,778.32 is: 92,153.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,366.96 : 170,245.68 = 66,778.32 : x
  2. Step 2: Convert to fraction form
    123,366.96/170,245.68 = 66,778.32/x
  3. Step 3: Cross multiply
    123,366.96x = 170,245.68 × 66,778.32
  4. Step 4: Simplify right side
    123,366.96x = 11,368,720,497.66
  5. Step 5: Solve for x
    x = 11,368,720,497.66/123,366.96
  6. Step 6: Final answer
    x = 92,153.69

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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.