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Finding the Fourth Proportional to 131.34, 181.36 and 94.56

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Solution

The fourth proportional to 131.34, 181.36 and 94.56 is: 130.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    131.34 : 181.36 = 94.56 : x
  2. Step 2: Convert to fraction form
    131.34/181.36 = 94.56/x
  3. Step 3: Cross multiply
    131.34x = 181.36 × 94.56
  4. Step 4: Simplify right side
    131.34x = 17,149.40
  5. Step 5: Solve for x
    x = 17,149.40/131.34
  6. Step 6: Final answer
    x = 130.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.