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Finding the Fourth Proportional to 114.45, 157.92 and 67.83

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Solution

The fourth proportional to 114.45, 157.92 and 67.83 is: 93.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    114.45 : 157.92 = 67.83 : x
  2. Step 2: Convert to fraction form
    114.45/157.92 = 67.83/x
  3. Step 3: Cross multiply
    114.45x = 157.92 × 67.83
  4. Step 4: Simplify right side
    114.45x = 10,711.71
  5. Step 5: Solve for x
    x = 10,711.71/114.45
  6. Step 6: Final answer
    x = 93.59

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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.