Home / 136,971.54-189,073.44-122,606.06

Finding the Fourth Proportional to 136,971.54, 189,073.44 and 122,606.06

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Solution

The fourth proportional to 136,971.54, 189,073.44 and 122,606.06 is: 169,243.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,971.54 : 189,073.44 = 122,606.06 : x
  2. Step 2: Convert to fraction form
    136,971.54/189,073.44 = 122,606.06/x
  3. Step 3: Cross multiply
    136,971.54x = 189,073.44 × 122,606.06
  4. Step 4: Simplify right side
    136,971.54x = 23,181,548,583.68
  5. Step 5: Solve for x
    x = 23,181,548,583.68/136,971.54
  6. Step 6: Final answer
    x = 169,243.54

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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.