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Finding the Fourth Proportional to 161,369.52, 222,662.76 and 89,740.08

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Solution

The fourth proportional to 161,369.52, 222,662.76 and 89,740.08 is: 123,826.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,369.52 : 222,662.76 = 89,740.08 : x
  2. Step 2: Convert to fraction form
    161,369.52/222,662.76 = 89,740.08/x
  3. Step 3: Cross multiply
    161,369.52x = 222,662.76 × 89,740.08
  4. Step 4: Simplify right side
    161,369.52x = 19,981,773,895.42
  5. Step 5: Solve for x
    x = 19,981,773,895.42/161,369.52
  6. Step 6: Final answer
    x = 123,826.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.