Home / 165,785.36-228,715.32-115,513.52

Finding the Fourth Proportional to 165,785.36, 228,715.32 and 115,513.52

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Solution

The fourth proportional to 165,785.36, 228,715.32 and 115,513.52 is: 159,360.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,785.36 : 228,715.32 = 115,513.52 : x
  2. Step 2: Convert to fraction form
    165,785.36/228,715.32 = 115,513.52/x
  3. Step 3: Cross multiply
    165,785.36x = 228,715.32 × 115,513.52
  4. Step 4: Simplify right side
    165,785.36x = 26,419,711,691.13
  5. Step 5: Solve for x
    x = 26,419,711,691.13/165,785.36
  6. Step 6: Final answer
    x = 159,360.95

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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.