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Finding the Fourth Proportional to 125.30, 186.37 and 114.97

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Solution

The fourth proportional to 125.30, 186.37 and 114.97 is: 171.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    125.30 : 186.37 = 114.97 : x
  2. Step 2: Convert to fraction form
    125.30/186.37 = 114.97/x
  3. Step 3: Cross multiply
    125.30x = 186.37 × 114.97
  4. Step 4: Simplify right side
    125.30x = 21,426.21
  5. Step 5: Solve for x
    x = 21,426.21/125.30
  6. Step 6: Final answer
    x = 171.01

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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.