Home / 161,080.68-222,402.52-100,678.44

Finding the Fourth Proportional to 161,080.68, 222,402.52 and 100,678.44

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Solution

The fourth proportional to 161,080.68, 222,402.52 and 100,678.44 is: 139,005.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,080.68 : 222,402.52 = 100,678.44 : x
  2. Step 2: Convert to fraction form
    161,080.68/222,402.52 = 100,678.44/x
  3. Step 3: Cross multiply
    161,080.68x = 222,402.52 × 100,678.44
  4. Step 4: Simplify right side
    161,080.68x = 22,391,138,765.67
  5. Step 5: Solve for x
    x = 22,391,138,765.67/161,080.68
  6. Step 6: Final answer
    x = 139,005.74

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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.