Home / 161,435.74-222,781.43-89,815.81

Finding the Fourth Proportional to 161,435.74, 222,781.43 and 89,815.81

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Solution

The fourth proportional to 161,435.74, 222,781.43 and 89,815.81 is: 123,945.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,435.74 : 222,781.43 = 89,815.81 : x
  2. Step 2: Convert to fraction form
    161,435.74/222,781.43 = 89,815.81/x
  3. Step 3: Cross multiply
    161,435.74x = 222,781.43 × 89,815.81
  4. Step 4: Simplify right side
    161,435.74x = 20,009,294,255.99
  5. Step 5: Solve for x
    x = 20,009,294,255.99/161,435.74
  6. Step 6: Final answer
    x = 123,945.88

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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.