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Finding the Fourth Proportional to 181,311.52, 271,572.72 and 87,620

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Solution

The fourth proportional to 181,311.52, 271,572.72 and 87,620 is: 131,239.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,311.52 : 271,572.72 = 87,620 : x
  2. Step 2: Convert to fraction form
    181,311.52/271,572.72 = 87,620/x
  3. Step 3: Cross multiply
    181,311.52x = 271,572.72 × 87,620
  4. Step 4: Simplify right side
    181,311.52x = 23,795,201,726.40
  5. Step 5: Solve for x
    x = 23,795,201,726.40/181,311.52
  6. Step 6: Final answer
    x = 131,239.33

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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.