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Finding the Fourth Proportional to 181,111.90, 271,473.45 and 68,748.70

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Solution

The fourth proportional to 181,111.90, 271,473.45 and 68,748.70 is: 103,049.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,111.90 : 271,473.45 = 68,748.70 : x
  2. Step 2: Convert to fraction form
    181,111.90/271,473.45 = 68,748.70/x
  3. Step 3: Cross multiply
    181,111.90x = 271,473.45 × 68,748.70
  4. Step 4: Simplify right side
    181,111.90x = 18,663,446,772.02
  5. Step 5: Solve for x
    x = 18,663,446,772.02/181,111.90
  6. Step 6: Final answer
    x = 103,049.26

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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.