Home / 189,473.30-261,472.61-104,589.75

Finding the Fourth Proportional to 189,473.30, 261,472.61 and 104,589.75

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Solution

The fourth proportional to 189,473.30, 261,472.61 and 104,589.75 is: 144,333.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,473.30 : 261,472.61 = 104,589.75 : x
  2. Step 2: Convert to fraction form
    189,473.30/261,472.61 = 104,589.75/x
  3. Step 3: Cross multiply
    189,473.30x = 261,472.61 × 104,589.75
  4. Step 4: Simplify right side
    189,473.30x = 27,347,355,173.22
  5. Step 5: Solve for x
    x = 27,347,355,173.22/189,473.30
  6. Step 6: Final answer
    x = 144,333.56

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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.