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Finding the Fourth Proportional to 147.92, 222.10 and 125.26

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Solution

The fourth proportional to 147.92, 222.10 and 125.26 is: 188.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    147.92 : 222.10 = 125.26 : x
  2. Step 2: Convert to fraction form
    147.92/222.10 = 125.26/x
  3. Step 3: Cross multiply
    147.92x = 222.10 × 125.26
  4. Step 4: Simplify right side
    147.92x = 27,820.25
  5. Step 5: Solve for x
    x = 27,820.25/147.92
  6. Step 6: Final answer
    x = 188.08

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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.