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Finding the Fourth Proportional to 102.63, 152.82 and 101.16

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Solution

The fourth proportional to 102.63, 152.82 and 101.16 is: 150.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    102.63 : 152.82 = 101.16 : x
  2. Step 2: Convert to fraction form
    102.63/152.82 = 101.16/x
  3. Step 3: Cross multiply
    102.63x = 152.82 × 101.16
  4. Step 4: Simplify right side
    102.63x = 15,459.27
  5. Step 5: Solve for x
    x = 15,459.27/102.63
  6. Step 6: Final answer
    x = 150.63

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.