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Finding the Fourth Proportional to 95.99, 143.83 and 90.52

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Solution

The fourth proportional to 95.99, 143.83 and 90.52 is: 135.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    95.99 : 143.83 = 90.52 : x
  2. Step 2: Convert to fraction form
    95.99/143.83 = 90.52/x
  3. Step 3: Cross multiply
    95.99x = 143.83 × 90.52
  4. Step 4: Simplify right side
    95.99x = 13,018.74
  5. Step 5: Solve for x
    x = 13,018.74/95.99
  6. Step 6: Final answer
    x = 135.63

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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.