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Finding the Fourth Proportional to 124.95, 188.14 and 92.67

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Solution

The fourth proportional to 124.95, 188.14 and 92.67 is: 139.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    124.95 : 188.14 = 92.67 : x
  2. Step 2: Convert to fraction form
    124.95/188.14 = 92.67/x
  3. Step 3: Cross multiply
    124.95x = 188.14 × 92.67
  4. Step 4: Simplify right side
    124.95x = 17,435.87
  5. Step 5: Solve for x
    x = 17,435.87/124.95
  6. Step 6: Final answer
    x = 139.55

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.