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Finding the Fourth Proportional to 171,252.08, 256,900 and 66,101.12

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Solution

The fourth proportional to 171,252.08, 256,900 and 66,101.12 is: 99,160.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,252.08 : 256,900 = 66,101.12 : x
  2. Step 2: Convert to fraction form
    171,252.08/256,900 = 66,101.12/x
  3. Step 3: Cross multiply
    171,252.08x = 256,900 × 66,101.12
  4. Step 4: Simplify right side
    171,252.08x = 16,981,377,728.00
  5. Step 5: Solve for x
    x = 16,981,377,728.00/171,252.08
  6. Step 6: Final answer
    x = 99,160.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.