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Finding the Fourth Proportional to 181,855.20, 272,070 and 119,647.20

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Solution

The fourth proportional to 181,855.20, 272,070 and 119,647.20 is: 179,001.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,855.20 : 272,070 = 119,647.20 : x
  2. Step 2: Convert to fraction form
    181,855.20/272,070 = 119,647.20/x
  3. Step 3: Cross multiply
    181,855.20x = 272,070 × 119,647.20
  4. Step 4: Simplify right side
    181,855.20x = 32,552,413,704
  5. Step 5: Solve for x
    x = 32,552,413,704/181,855.20
  6. Step 6: Final answer
    x = 179,001.83

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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.