Home / 179.10-247.08-120.87

Finding the Fourth Proportional to 179.10, 247.08 and 120.87

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Solution

The fourth proportional to 179.10, 247.08 and 120.87 is: 166.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    179.10 : 247.08 = 120.87 : x
  2. Step 2: Convert to fraction form
    179.10/247.08 = 120.87/x
  3. Step 3: Cross multiply
    179.10x = 247.08 × 120.87
  4. Step 4: Simplify right side
    179.10x = 29,864.56
  5. Step 5: Solve for x
    x = 29,864.56/179.10
  6. Step 6: Final answer
    x = 166.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.