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Finding the Fourth Proportional to 189,169.97, 261,056.37 and 104,290.07

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Solution

The fourth proportional to 189,169.97, 261,056.37 and 104,290.07 is: 143,921.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,169.97 : 261,056.37 = 104,290.07 : x
  2. Step 2: Convert to fraction form
    189,169.97/261,056.37 = 104,290.07/x
  3. Step 3: Cross multiply
    189,169.97x = 261,056.37 × 104,290.07
  4. Step 4: Simplify right side
    189,169.97x = 27,225,587,101.25
  5. Step 5: Solve for x
    x = 27,225,587,101.25/189,169.97
  6. Step 6: Final answer
    x = 143,921.30

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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.