Home / 123,188.04-169,998.75-66,599.28

Finding the Fourth Proportional to 123,188.04, 169,998.75 and 66,599.28

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Solution

The fourth proportional to 123,188.04, 169,998.75 and 66,599.28 is: 91,906.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,188.04 : 169,998.75 = 66,599.28 : x
  2. Step 2: Convert to fraction form
    123,188.04/169,998.75 = 66,599.28/x
  3. Step 3: Cross multiply
    123,188.04x = 169,998.75 × 66,599.28
  4. Step 4: Simplify right side
    123,188.04x = 11,321,794,350.90
  5. Step 5: Solve for x
    x = 11,321,794,350.90/123,188.04
  6. Step 6: Final answer
    x = 91,906.60

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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.