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Finding the Fourth Proportional to 117.62, 175.50 and 104.56

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Solution

The fourth proportional to 117.62, 175.50 and 104.56 is: 156.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    117.62 : 175.50 = 104.56 : x
  2. Step 2: Convert to fraction form
    117.62/175.50 = 104.56/x
  3. Step 3: Cross multiply
    117.62x = 175.50 × 104.56
  4. Step 4: Simplify right side
    117.62x = 18,349.76
  5. Step 5: Solve for x
    x = 18,349.76/117.62
  6. Step 6: Final answer
    x = 156.01

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.