Home / 189,321.72-261,266.82-104,436.96

Finding the Fourth Proportional to 189,321.72, 261,266.82 and 104,436.96

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Solution

The fourth proportional to 189,321.72, 261,266.82 and 104,436.96 is: 144,124.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,321.72 : 261,266.82 = 104,436.96 : x
  2. Step 2: Convert to fraction form
    189,321.72/261,266.82 = 104,436.96/x
  3. Step 3: Cross multiply
    189,321.72x = 261,266.82 × 104,436.96
  4. Step 4: Simplify right side
    189,321.72x = 27,285,912,429.67
  5. Step 5: Solve for x
    x = 27,285,912,429.67/189,321.72
  6. Step 6: Final answer
    x = 144,124.57

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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.