Home / 189,318.72-261,262.68-104,433.96

Finding the Fourth Proportional to 189,318.72, 261,262.68 and 104,433.96

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Solution

The fourth proportional to 189,318.72, 261,262.68 and 104,433.96 is: 144,120.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,318.72 : 261,262.68 = 104,433.96 : x
  2. Step 2: Convert to fraction form
    189,318.72/261,262.68 = 104,433.96/x
  3. Step 3: Cross multiply
    189,318.72x = 261,262.68 × 104,433.96
  4. Step 4: Simplify right side
    189,318.72x = 27,284,696,272.61
  5. Step 5: Solve for x
    x = 27,284,696,272.61/189,318.72
  6. Step 6: Final answer
    x = 144,120.43

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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.