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Finding the Fourth Proportional to 134.92, 202.32 and 57.92

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Solution

The fourth proportional to 134.92, 202.32 and 57.92 is: 86.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    134.92 : 202.32 = 57.92 : x
  2. Step 2: Convert to fraction form
    134.92/202.32 = 57.92/x
  3. Step 3: Cross multiply
    134.92x = 202.32 × 57.92
  4. Step 4: Simplify right side
    134.92x = 11,718.37
  5. Step 5: Solve for x
    x = 11,718.37/134.92
  6. Step 6: Final answer
    x = 86.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.