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Finding the Fourth Proportional to 116.66, 175.04 and 51.65

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Solution

The fourth proportional to 116.66, 175.04 and 51.65 is: 77.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    116.66 : 175.04 = 51.65 : x
  2. Step 2: Convert to fraction form
    116.66/175.04 = 51.65/x
  3. Step 3: Cross multiply
    116.66x = 175.04 × 51.65
  4. Step 4: Simplify right side
    116.66x = 9,040.82
  5. Step 5: Solve for x
    x = 9,040.82/116.66
  6. Step 6: Final answer
    x = 77.50

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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.