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Finding the Fourth Proportional to 161,481.70, 222,841.74 and 89,861.05

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Solution

The fourth proportional to 161,481.70, 222,841.74 and 89,861.05 is: 124,006.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,481.70 : 222,841.74 = 89,861.05 : x
  2. Step 2: Convert to fraction form
    161,481.70/222,841.74 = 89,861.05/x
  3. Step 3: Cross multiply
    161,481.70x = 222,841.74 × 89,861.05
  4. Step 4: Simplify right side
    161,481.70x = 20,024,792,740.23
  5. Step 5: Solve for x
    x = 20,024,792,740.23/161,481.70
  6. Step 6: Final answer
    x = 124,006.58

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1.5x scale

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.