Home / 161,112.82-222,335.60-89,499.51

Finding the Fourth Proportional to 161,112.82, 222,335.60 and 89,499.51

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Solution

The fourth proportional to 161,112.82, 222,335.60 and 89,499.51 is: 123,509.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,112.82 : 222,335.60 = 89,499.51 : x
  2. Step 2: Convert to fraction form
    161,112.82/222,335.60 = 89,499.51/x
  3. Step 3: Cross multiply
    161,112.82x = 222,335.60 × 89,499.51
  4. Step 4: Simplify right side
    161,112.82x = 19,898,927,255.56
  5. Step 5: Solve for x
    x = 19,898,927,255.56/161,112.82
  6. Step 6: Final answer
    x = 123,509.27

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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.