Home / 123,186.80-169,997.64-66,598.16

Finding the Fourth Proportional to 123,186.80, 169,997.64 and 66,598.16

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Solution

The fourth proportional to 123,186.80, 169,997.64 and 66,598.16 is: 91,905.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,186.80 : 169,997.64 = 66,598.16 : x
  2. Step 2: Convert to fraction form
    123,186.80/169,997.64 = 66,598.16/x
  3. Step 3: Cross multiply
    123,186.80x = 169,997.64 × 66,598.16
  4. Step 4: Simplify right side
    123,186.80x = 11,321,530,028.34
  5. Step 5: Solve for x
    x = 11,321,530,028.34/123,186.80
  6. Step 6: Final answer
    x = 91,905.38

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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.