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Finding the Fourth Proportional to 161,302.50, 222,586.92 and 89,679.87

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Solution

The fourth proportional to 161,302.50, 222,586.92 and 89,679.87 is: 123,752.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,302.50 : 222,586.92 = 89,679.87 : x
  2. Step 2: Convert to fraction form
    161,302.50/222,586.92 = 89,679.87/x
  3. Step 3: Cross multiply
    161,302.50x = 222,586.92 × 89,679.87
  4. Step 4: Simplify right side
    161,302.50x = 19,961,566,049.30
  5. Step 5: Solve for x
    x = 19,961,566,049.30/161,302.50
  6. Step 6: Final answer
    x = 123,752.37

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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.