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Finding the Fourth Proportional to 181,269.60, 272,001.60 and 76,099.20

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Solution

The fourth proportional to 181,269.60, 272,001.60 and 76,099.20 is: 114,189.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,269.60 : 272,001.60 = 76,099.20 : x
  2. Step 2: Convert to fraction form
    181,269.60/272,001.60 = 76,099.20/x
  3. Step 3: Cross multiply
    181,269.60x = 272,001.60 × 76,099.20
  4. Step 4: Simplify right side
    181,269.60x = 20,699,104,158.72
  5. Step 5: Solve for x
    x = 20,699,104,158.72/181,269.60
  6. Step 6: Final answer
    x = 114,189.61

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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.