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Finding the Fourth Proportional to 95.88, 130.62 and 93.90

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Solution

The fourth proportional to 95.88, 130.62 and 93.90 is: 127.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    95.88 : 130.62 = 93.90 : x
  2. Step 2: Convert to fraction form
    95.88/130.62 = 93.90/x
  3. Step 3: Cross multiply
    95.88x = 130.62 × 93.90
  4. Step 4: Simplify right side
    95.88x = 12,265.22
  5. Step 5: Solve for x
    x = 12,265.22/95.88
  6. Step 6: Final answer
    x = 127.92

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.