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Finding the Fourth Proportional to 93.52, 141.01 and 87.14

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Solution

The fourth proportional to 93.52, 141.01 and 87.14 is: 131.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    93.52 : 141.01 = 87.14 : x
  2. Step 2: Convert to fraction form
    93.52/141.01 = 87.14/x
  3. Step 3: Cross multiply
    93.52x = 141.01 × 87.14
  4. Step 4: Simplify right side
    93.52x = 12,287.75
  5. Step 5: Solve for x
    x = 12,287.75/93.52
  6. Step 6: Final answer
    x = 131.39

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.