Home / 165,565.42-228,485.17-117,253.78

Finding the Fourth Proportional to 165,565.42, 228,485.17 and 117,253.78

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Solution

The fourth proportional to 165,565.42, 228,485.17 and 117,253.78 is: 161,813.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,565.42 : 228,485.17 = 117,253.78 : x
  2. Step 2: Convert to fraction form
    165,565.42/228,485.17 = 117,253.78/x
  3. Step 3: Cross multiply
    165,565.42x = 228,485.17 × 117,253.78
  4. Step 4: Simplify right side
    165,565.42x = 26,790,749,856.44
  5. Step 5: Solve for x
    x = 26,790,749,856.44/165,565.42
  6. Step 6: Final answer
    x = 161,813.68

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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.