Home / 161,442.06-222,778.98-89,819.40

Finding the Fourth Proportional to 161,442.06, 222,778.98 and 89,819.40

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Solution

The fourth proportional to 161,442.06, 222,778.98 and 89,819.40 is: 123,944.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,442.06 : 222,778.98 = 89,819.40 : x
  2. Step 2: Convert to fraction form
    161,442.06/222,778.98 = 89,819.40/x
  3. Step 3: Cross multiply
    161,442.06x = 222,778.98 × 89,819.40
  4. Step 4: Simplify right side
    161,442.06x = 20,009,874,316.21
  5. Step 5: Solve for x
    x = 20,009,874,316.21/161,442.06
  6. Step 6: Final answer
    x = 123,944.62

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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.