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Finding the Fourth Proportional to 93.62, 139.73 and 88.29

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Solution

The fourth proportional to 93.62, 139.73 and 88.29 is: 131.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    93.62 : 139.73 = 88.29 : x
  2. Step 2: Convert to fraction form
    93.62/139.73 = 88.29/x
  3. Step 3: Cross multiply
    93.62x = 139.73 × 88.29
  4. Step 4: Simplify right side
    93.62x = 12,336.32
  5. Step 5: Solve for x
    x = 12,336.32/93.62
  6. Step 6: Final answer
    x = 131.77

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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.