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Finding the Fourth Proportional to 126.07, 173.52 and 117.36

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Solution

The fourth proportional to 126.07, 173.52 and 117.36 is: 161.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    126.07 : 173.52 = 117.36 : x
  2. Step 2: Convert to fraction form
    126.07/173.52 = 117.36/x
  3. Step 3: Cross multiply
    126.07x = 173.52 × 117.36
  4. Step 4: Simplify right side
    126.07x = 20,364.31
  5. Step 5: Solve for x
    x = 20,364.31/126.07
  6. Step 6: Final answer
    x = 161.53

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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.