Home / 161,188.43-222,371.04-100,653.97

Finding the Fourth Proportional to 161,188.43, 222,371.04 and 100,653.97

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Solution

The fourth proportional to 161,188.43, 222,371.04 and 100,653.97 is: 138,859.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,188.43 : 222,371.04 = 100,653.97 : x
  2. Step 2: Convert to fraction form
    161,188.43/222,371.04 = 100,653.97/x
  3. Step 3: Cross multiply
    161,188.43x = 222,371.04 × 100,653.97
  4. Step 4: Simplify right side
    161,188.43x = 22,382,527,433.10
  5. Step 5: Solve for x
    x = 22,382,527,433.10/161,188.43
  6. Step 6: Final answer
    x = 138,859.40

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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.