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Finding the Fourth Proportional to 125.22, 186.30 and 124.32

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Solution

The fourth proportional to 125.22, 186.30 and 124.32 is: 184.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    125.22 : 186.30 = 124.32 : x
  2. Step 2: Convert to fraction form
    125.22/186.30 = 124.32/x
  3. Step 3: Cross multiply
    125.22x = 186.30 × 124.32
  4. Step 4: Simplify right side
    125.22x = 23,160.82
  5. Step 5: Solve for x
    x = 23,160.82/125.22
  6. Step 6: Final answer
    x = 184.96

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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.