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Finding the Fourth Proportional to 131.37, 195.67 and 125.45

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Solution

The fourth proportional to 131.37, 195.67 and 125.45 is: 186.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    131.37 : 195.67 = 125.45 : x
  2. Step 2: Convert to fraction form
    131.37/195.67 = 125.45/x
  3. Step 3: Cross multiply
    131.37x = 195.67 × 125.45
  4. Step 4: Simplify right side
    131.37x = 24,547.07
  5. Step 5: Solve for x
    x = 24,547.07/131.37
  6. Step 6: Final answer
    x = 186.85

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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.