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Finding the Fourth Proportional to 146.63, 202.21 and 96.77

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Solution

The fourth proportional to 146.63, 202.21 and 96.77 is: 133.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    146.63 : 202.21 = 96.77 : x
  2. Step 2: Convert to fraction form
    146.63/202.21 = 96.77/x
  3. Step 3: Cross multiply
    146.63x = 202.21 × 96.77
  4. Step 4: Simplify right side
    146.63x = 19,567.86
  5. Step 5: Solve for x
    x = 19,567.86/146.63
  6. Step 6: Final answer
    x = 133.45

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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.