Home / 161,074.81-222,394.41-100,672.57

Finding the Fourth Proportional to 161,074.81, 222,394.41 and 100,672.57

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Solution

The fourth proportional to 161,074.81, 222,394.41 and 100,672.57 is: 138,997.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,074.81 : 222,394.41 = 100,672.57 : x
  2. Step 2: Convert to fraction form
    161,074.81/222,394.41 = 100,672.57/x
  3. Step 3: Cross multiply
    161,074.81x = 222,394.41 × 100,672.57
  4. Step 4: Simplify right side
    161,074.81x = 22,389,016,808.33
  5. Step 5: Solve for x
    x = 22,389,016,808.33/161,074.81
  6. Step 6: Final answer
    x = 138,997.63

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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.