Home / 189,249.82-261,161.45-103,209.46

Finding the Fourth Proportional to 189,249.82, 261,161.45 and 103,209.46

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Solution

The fourth proportional to 189,249.82, 261,161.45 and 103,209.46 is: 142,427.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,249.82 : 261,161.45 = 103,209.46 : x
  2. Step 2: Convert to fraction form
    189,249.82/261,161.45 = 103,209.46/x
  3. Step 3: Cross multiply
    189,249.82x = 261,161.45 × 103,209.46
  4. Step 4: Simplify right side
    189,249.82x = 26,954,332,227.32
  5. Step 5: Solve for x
    x = 26,954,332,227.32/189,249.82
  6. Step 6: Final answer
    x = 142,427.25

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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.