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Finding the Fourth Proportional to 124.25, 185.66 and 94.81

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Solution

The fourth proportional to 124.25, 185.66 and 94.81 is: 141.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    124.25 : 185.66 = 94.81 : x
  2. Step 2: Convert to fraction form
    124.25/185.66 = 94.81/x
  3. Step 3: Cross multiply
    124.25x = 185.66 × 94.81
  4. Step 4: Simplify right side
    124.25x = 17,602.32
  5. Step 5: Solve for x
    x = 17,602.32/124.25
  6. Step 6: Final answer
    x = 141.67

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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.