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Finding the Fourth Proportional to 95.04, 142.38 and 91.56

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Solution

The fourth proportional to 95.04, 142.38 and 91.56 is: 137.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    95.04 : 142.38 = 91.56 : x
  2. Step 2: Convert to fraction form
    95.04/142.38 = 91.56/x
  3. Step 3: Cross multiply
    95.04x = 142.38 × 91.56
  4. Step 4: Simplify right side
    95.04x = 13,036.31
  5. Step 5: Solve for x
    x = 13,036.31/95.04
  6. Step 6: Final answer
    x = 137.17

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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.