Home / 161,351.42-222,661.06-87,761.96

Finding the Fourth Proportional to 161,351.42, 222,661.06 and 87,761.96

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Solution

The fourth proportional to 161,351.42, 222,661.06 and 87,761.96 is: 121,109.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,351.42 : 222,661.06 = 87,761.96 : x
  2. Step 2: Convert to fraction form
    161,351.42/222,661.06 = 87,761.96/x
  3. Step 3: Cross multiply
    161,351.42x = 222,661.06 × 87,761.96
  4. Step 4: Simplify right side
    161,351.42x = 19,541,171,041.28
  5. Step 5: Solve for x
    x = 19,541,171,041.28/161,351.42
  6. Step 6: Final answer
    x = 121,109.38

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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.