Home / 123,250.41-170,085.57-66,661.78

Finding the Fourth Proportional to 123,250.41, 170,085.57 and 66,661.78

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Solution

The fourth proportional to 123,250.41, 170,085.57 and 66,661.78 is: 91,993.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,250.41 : 170,085.57 = 66,661.78 : x
  2. Step 2: Convert to fraction form
    123,250.41/170,085.57 = 66,661.78/x
  3. Step 3: Cross multiply
    123,250.41x = 170,085.57 × 66,661.78
  4. Step 4: Simplify right side
    123,250.41x = 11,338,206,848.51
  5. Step 5: Solve for x
    x = 11,338,206,848.51/123,250.41
  6. Step 6: Final answer
    x = 91,993.26

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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.