Home / 165,862.08-228,896.64-90,414.72

Finding the Fourth Proportional to 165,862.08, 228,896.64 and 90,414.72

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Solution

The fourth proportional to 165,862.08, 228,896.64 and 90,414.72 is: 124,776.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,862.08 : 228,896.64 = 90,414.72 : x
  2. Step 2: Convert to fraction form
    165,862.08/228,896.64 = 90,414.72/x
  3. Step 3: Cross multiply
    165,862.08x = 228,896.64 × 90,414.72
  4. Step 4: Simplify right side
    165,862.08x = 20,695,625,614.54
  5. Step 5: Solve for x
    x = 20,695,625,614.54/165,862.08
  6. Step 6: Final answer
    x = 124,776.11

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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.