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Finding the Fourth Proportional to 107.71, 162.46 and 101.39

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Solution

The fourth proportional to 107.71, 162.46 and 101.39 is: 152.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    107.71 : 162.46 = 101.39 : x
  2. Step 2: Convert to fraction form
    107.71/162.46 = 101.39/x
  3. Step 3: Cross multiply
    107.71x = 162.46 × 101.39
  4. Step 4: Simplify right side
    107.71x = 16,470.75
  5. Step 5: Solve for x
    x = 16,470.75/107.71
  6. Step 6: Final answer
    x = 152.92

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.