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Finding the Fourth Proportional to 181,519.20, 272,149.20 and 102,657.60

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Solution

The fourth proportional to 181,519.20, 272,149.20 and 102,657.60 is: 153,913.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,519.20 : 272,149.20 = 102,657.60 : x
  2. Step 2: Convert to fraction form
    181,519.20/272,149.20 = 102,657.60/x
  3. Step 3: Cross multiply
    181,519.20x = 272,149.20 × 102,657.60
  4. Step 4: Simplify right side
    181,519.20x = 27,938,183,713.92
  5. Step 5: Solve for x
    x = 27,938,183,713.92/181,519.20
  6. Step 6: Final answer
    x = 153,913.11

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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.