Home / 161,241.58-222,496.68-100,818.88

Finding the Fourth Proportional to 161,241.58, 222,496.68 and 100,818.88

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Solution

The fourth proportional to 161,241.58, 222,496.68 and 100,818.88 is: 139,119.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,241.58 : 222,496.68 = 100,818.88 : x
  2. Step 2: Convert to fraction form
    161,241.58/222,496.68 = 100,818.88/x
  3. Step 3: Cross multiply
    161,241.58x = 222,496.68 × 100,818.88
  4. Step 4: Simplify right side
    161,241.58x = 22,431,866,081.32
  5. Step 5: Solve for x
    x = 22,431,866,081.32/161,241.58
  6. Step 6: Final answer
    x = 139,119.61

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1.5x scale

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.