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Finding the Fourth Proportional to 93.73, 141.16 and 83

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Solution

The fourth proportional to 93.73, 141.16 and 83 is: 125.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    93.73 : 141.16 = 83 : x
  2. Step 2: Convert to fraction form
    93.73/141.16 = 83/x
  3. Step 3: Cross multiply
    93.73x = 141.16 × 83
  4. Step 4: Simplify right side
    93.73x = 11,715.87
  5. Step 5: Solve for x
    x = 11,715.87/93.73
  6. Step 6: Final answer
    x = 125.00

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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.