Home / 115,257.38-159,056.42-64,956.38

Finding the Fourth Proportional to 115,257.38, 159,056.42 and 64,956.38

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Solution

The fourth proportional to 115,257.38, 159,056.42 and 64,956.38 is: 89,640.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,257.38 : 159,056.42 = 64,956.38 : x
  2. Step 2: Convert to fraction form
    115,257.38/159,056.42 = 64,956.38/x
  3. Step 3: Cross multiply
    115,257.38x = 159,056.42 × 64,956.38
  4. Step 4: Simplify right side
    115,257.38x = 10,331,728,138.90
  5. Step 5: Solve for x
    x = 10,331,728,138.90/115,257.38
  6. Step 6: Final answer
    x = 89,640.49

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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.