Home / 161,286.22-222,564.58-89,664.40

Finding the Fourth Proportional to 161,286.22, 222,564.58 and 89,664.40

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Solution

The fourth proportional to 161,286.22, 222,564.58 and 89,664.40 is: 123,731.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,286.22 : 222,564.58 = 89,664.40 : x
  2. Step 2: Convert to fraction form
    161,286.22/222,564.58 = 89,664.40/x
  3. Step 3: Cross multiply
    161,286.22x = 222,564.58 × 89,664.40
  4. Step 4: Simplify right side
    161,286.22x = 19,956,119,526.95
  5. Step 5: Solve for x
    x = 19,956,119,526.95/161,286.22
  6. Step 6: Final answer
    x = 123,731.09

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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.