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Finding the Fourth Proportional to 134.23, 201.41 and 53.07

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Solution

The fourth proportional to 134.23, 201.41 and 53.07 is: 79.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    134.23 : 201.41 = 53.07 : x
  2. Step 2: Convert to fraction form
    134.23/201.41 = 53.07/x
  3. Step 3: Cross multiply
    134.23x = 201.41 × 53.07
  4. Step 4: Simplify right side
    134.23x = 10,688.83
  5. Step 5: Solve for x
    x = 10,688.83/134.23
  6. Step 6: Final answer
    x = 79.63

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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.