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Finding the Fourth Proportional to 181,891.70, 272,837.55 and 118,906.10

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Solution

The fourth proportional to 181,891.70, 272,837.55 and 118,906.10 is: 178,359.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,891.70 : 272,837.55 = 118,906.10 : x
  2. Step 2: Convert to fraction form
    181,891.70/272,837.55 = 118,906.10/x
  3. Step 3: Cross multiply
    181,891.70x = 272,837.55 × 118,906.10
  4. Step 4: Simplify right side
    181,891.70x = 32,442,049,004.06
  5. Step 5: Solve for x
    x = 32,442,049,004.06/181,891.70
  6. Step 6: Final answer
    x = 178,359.15

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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.