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Finding the Fourth Proportional to 189,069.33, 260,917.43 and 104,189.43

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Solution

The fourth proportional to 189,069.33, 260,917.43 and 104,189.43 is: 143,782.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,069.33 : 260,917.43 = 104,189.43 : x
  2. Step 2: Convert to fraction form
    189,069.33/260,917.43 = 104,189.43/x
  3. Step 3: Cross multiply
    189,069.33x = 260,917.43 × 104,189.43
  4. Step 4: Simplify right side
    189,069.33x = 27,184,837,787.82
  5. Step 5: Solve for x
    x = 27,184,837,787.82/189,069.33
  6. Step 6: Final answer
    x = 143,782.38

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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.