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Finding the Fourth Proportional to 113.00, 155.86 and 96.59

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Solution

The fourth proportional to 113.00, 155.86 and 96.59 is: 133.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    113.00 : 155.86 = 96.59 : x
  2. Step 2: Convert to fraction form
    113.00/155.86 = 96.59/x
  3. Step 3: Cross multiply
    113.00x = 155.86 × 96.59
  4. Step 4: Simplify right side
    113.00x = 15,054.67
  5. Step 5: Solve for x
    x = 15,054.67/113.00
  6. Step 6: Final answer
    x = 133.23

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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.