Home / 165,308.22-228,150.28-100,814.87

Finding the Fourth Proportional to 165,308.22, 228,150.28 and 100,814.87

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Solution

The fourth proportional to 165,308.22, 228,150.28 and 100,814.87 is: 139,139.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,308.22 : 228,150.28 = 100,814.87 : x
  2. Step 2: Convert to fraction form
    165,308.22/228,150.28 = 100,814.87/x
  3. Step 3: Cross multiply
    165,308.22x = 228,150.28 × 100,814.87
  4. Step 4: Simplify right side
    165,308.22x = 23,000,940,818.66
  5. Step 5: Solve for x
    x = 23,000,940,818.66/165,308.22
  6. Step 6: Final answer
    x = 139,139.73

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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.