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Finding the Fourth Proportional to 107, 160.51 and 46.12

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Solution

The fourth proportional to 107, 160.51 and 46.12 is: 69.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    107 : 160.51 = 46.12 : x
  2. Step 2: Convert to fraction form
    107/160.51 = 46.12/x
  3. Step 3: Cross multiply
    107x = 160.51 × 46.12
  4. Step 4: Simplify right side
    107x = 7,402.72
  5. Step 5: Solve for x
    x = 7,402.72/107
  6. Step 6: Final answer
    x = 69.18

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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.