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Finding the Fourth Proportional to 103.02, 142.05 and 95.73

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Solution

The fourth proportional to 103.02, 142.05 and 95.73 is: 132.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    103.02 : 142.05 = 95.73 : x
  2. Step 2: Convert to fraction form
    103.02/142.05 = 95.73/x
  3. Step 3: Cross multiply
    103.02x = 142.05 × 95.73
  4. Step 4: Simplify right side
    103.02x = 13,598.45
  5. Step 5: Solve for x
    x = 13,598.45/103.02
  6. Step 6: Final answer
    x = 132.00

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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.