Home / 123,121.08-169,906.44-66,532.32

Finding the Fourth Proportional to 123,121.08, 169,906.44 and 66,532.32

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Solution

The fourth proportional to 123,121.08, 169,906.44 and 66,532.32 is: 91,814.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,121.08 : 169,906.44 = 66,532.32 : x
  2. Step 2: Convert to fraction form
    123,121.08/169,906.44 = 66,532.32/x
  3. Step 3: Cross multiply
    123,121.08x = 169,906.44 × 66,532.32
  4. Step 4: Simplify right side
    123,121.08x = 11,304,269,636.14
  5. Step 5: Solve for x
    x = 11,304,269,636.14/123,121.08
  6. Step 6: Final answer
    x = 91,814.25

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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.