Home / 161,105.20-222,319.04-89,489.84

Finding the Fourth Proportional to 161,105.20, 222,319.04 and 89,489.84

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Solution

The fourth proportional to 161,105.20, 222,319.04 and 89,489.84 is: 123,492.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,105.20 : 222,319.04 = 89,489.84 : x
  2. Step 2: Convert to fraction form
    161,105.20/222,319.04 = 89,489.84/x
  3. Step 3: Cross multiply
    161,105.20x = 222,319.04 × 89,489.84
  4. Step 4: Simplify right side
    161,105.20x = 19,895,295,318.55
  5. Step 5: Solve for x
    x = 19,895,295,318.55/161,105.20
  6. Step 6: Final answer
    x = 123,492.57

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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.