Home / 161,099.88-222,398.64-100,704.12

Finding the Fourth Proportional to 161,099.88, 222,398.64 and 100,704.12

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Solution

The fourth proportional to 161,099.88, 222,398.64 and 100,704.12 is: 139,022.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,099.88 : 222,398.64 = 100,704.12 : x
  2. Step 2: Convert to fraction form
    161,099.88/222,398.64 = 100,704.12/x
  3. Step 3: Cross multiply
    161,099.88x = 222,398.64 × 100,704.12
  4. Step 4: Simplify right side
    161,099.88x = 22,396,459,330.40
  5. Step 5: Solve for x
    x = 22,396,459,330.40/161,099.88
  6. Step 6: Final answer
    x = 139,022.20

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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.