Home / 147,961.60-222,081.60-77,891.20

Finding the Fourth Proportional to 147,961.60, 222,081.60 and 77,891.20

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Solution

The fourth proportional to 147,961.60, 222,081.60 and 77,891.20 is: 116,910.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,961.60 : 222,081.60 = 77,891.20 : x
  2. Step 2: Convert to fraction form
    147,961.60/222,081.60 = 77,891.20/x
  3. Step 3: Cross multiply
    147,961.60x = 222,081.60 × 77,891.20
  4. Step 4: Simplify right side
    147,961.60x = 17,298,202,321.92
  5. Step 5: Solve for x
    x = 17,298,202,321.92/147,961.60
  6. Step 6: Final answer
    x = 116,910.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.