Home / 189,408.47-261,376.82-104,523.71

Finding the Fourth Proportional to 189,408.47, 261,376.82 and 104,523.71

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Solution

The fourth proportional to 189,408.47, 261,376.82 and 104,523.71 is: 144,238.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,408.47 : 261,376.82 = 104,523.71 : x
  2. Step 2: Convert to fraction form
    189,408.47/261,376.82 = 104,523.71/x
  3. Step 3: Cross multiply
    189,408.47x = 261,376.82 × 104,523.71
  4. Step 4: Simplify right side
    189,408.47x = 27,320,073,104.90
  5. Step 5: Solve for x
    x = 27,320,073,104.90/189,408.47
  6. Step 6: Final answer
    x = 144,238.92

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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.