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Finding the Fourth Proportional to 124.99, 186.35 and 124.69

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Solution

The fourth proportional to 124.99, 186.35 and 124.69 is: 185.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    124.99 : 186.35 = 124.69 : x
  2. Step 2: Convert to fraction form
    124.99/186.35 = 124.69/x
  3. Step 3: Cross multiply
    124.99x = 186.35 × 124.69
  4. Step 4: Simplify right side
    124.99x = 23,235.94
  5. Step 5: Solve for x
    x = 23,235.94/124.99
  6. Step 6: Final answer
    x = 185.90

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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.