Home / 134.15-201.21-42.83

Finding the Fourth Proportional to 134.15, 201.21 and 42.83

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Solution

The fourth proportional to 134.15, 201.21 and 42.83 is: 64.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    134.15 : 201.21 = 42.83 : x
  2. Step 2: Convert to fraction form
    134.15/201.21 = 42.83/x
  3. Step 3: Cross multiply
    134.15x = 201.21 × 42.83
  4. Step 4: Simplify right side
    134.15x = 8,618.33
  5. Step 5: Solve for x
    x = 8,618.33/134.15
  6. Step 6: Final answer
    x = 64.25

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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.