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Finding the Fourth Proportional to 161,305.50, 222,591.06 and 89,682.87

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Solution

The fourth proportional to 161,305.50, 222,591.06 and 89,682.87 is: 123,756.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,305.50 : 222,591.06 = 89,682.87 : x
  2. Step 2: Convert to fraction form
    161,305.50/222,591.06 = 89,682.87/x
  3. Step 3: Cross multiply
    161,305.50x = 222,591.06 × 89,682.87
  4. Step 4: Simplify right side
    161,305.50x = 19,962,605,097.14
  5. Step 5: Solve for x
    x = 19,962,605,097.14/161,305.50
  6. Step 6: Final answer
    x = 123,756.51

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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.