Home / 161,511.70-222,890.52-89,899.60

Finding the Fourth Proportional to 161,511.70, 222,890.52 and 89,899.60

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Solution

The fourth proportional to 161,511.70, 222,890.52 and 89,899.60 is: 124,063.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,511.70 : 222,890.52 = 89,899.60 : x
  2. Step 2: Convert to fraction form
    161,511.70/222,890.52 = 89,899.60/x
  3. Step 3: Cross multiply
    161,511.70x = 222,890.52 × 89,899.60
  4. Step 4: Simplify right side
    161,511.70x = 20,037,768,591.79
  5. Step 5: Solve for x
    x = 20,037,768,591.79/161,511.70
  6. Step 6: Final answer
    x = 124,063.88

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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.