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Finding the Fourth Proportional to 95.19, 130.29 and 92.42

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Solution

The fourth proportional to 95.19, 130.29 and 92.42 is: 126.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    95.19 : 130.29 = 92.42 : x
  2. Step 2: Convert to fraction form
    95.19/130.29 = 92.42/x
  3. Step 3: Cross multiply
    95.19x = 130.29 × 92.42
  4. Step 4: Simplify right side
    95.19x = 12,041.40
  5. Step 5: Solve for x
    x = 12,041.40/95.19
  6. Step 6: Final answer
    x = 126.50

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.