Home / 112,691.64-168,540.66-100,293.24

Finding the Fourth Proportional to 112,691.64, 168,540.66 and 100,293.24

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Solution

The fourth proportional to 112,691.64, 168,540.66 and 100,293.24 is: 149,997.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,691.64 : 168,540.66 = 100,293.24 : x
  2. Step 2: Convert to fraction form
    112,691.64/168,540.66 = 100,293.24/x
  3. Step 3: Cross multiply
    112,691.64x = 168,540.66 × 100,293.24
  4. Step 4: Simplify right side
    112,691.64x = 16,903,488,863.14
  5. Step 5: Solve for x
    x = 16,903,488,863.14/112,691.64
  6. Step 6: Final answer
    x = 149,997.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.