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Finding the Fourth Proportional to 117.37, 162.05 and 73.13

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Solution

The fourth proportional to 117.37, 162.05 and 73.13 is: 100.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    117.37 : 162.05 = 73.13 : x
  2. Step 2: Convert to fraction form
    117.37/162.05 = 73.13/x
  3. Step 3: Cross multiply
    117.37x = 162.05 × 73.13
  4. Step 4: Simplify right side
    117.37x = 11,850.74
  5. Step 5: Solve for x
    x = 11,850.74/117.37
  6. Step 6: Final answer
    x = 100.97

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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.