Home / 123,525-170,464.50-66,936.38

Finding the Fourth Proportional to 123,525, 170,464.50 and 66,936.38

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Solution

The fourth proportional to 123,525, 170,464.50 and 66,936.38 is: 92,372.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,525 : 170,464.50 = 66,936.38 : x
  2. Step 2: Convert to fraction form
    123,525/170,464.50 = 66,936.38/x
  3. Step 3: Cross multiply
    123,525x = 170,464.50 × 66,936.38
  4. Step 4: Simplify right side
    123,525x = 11,410,275,696.19
  5. Step 5: Solve for x
    x = 11,410,275,696.19/123,525
  6. Step 6: Final answer
    x = 92,372.20

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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.