Home / 165,673.20-228,631.64-90,221.64

Finding the Fourth Proportional to 165,673.20, 228,631.64 and 90,221.64

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Solution

The fourth proportional to 165,673.20, 228,631.64 and 90,221.64 is: 124,507.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,673.20 : 228,631.64 = 90,221.64 : x
  2. Step 2: Convert to fraction form
    165,673.20/228,631.64 = 90,221.64/x
  3. Step 3: Cross multiply
    165,673.20x = 228,631.64 × 90,221.64
  4. Step 4: Simplify right side
    165,673.20x = 20,627,521,516.69
  5. Step 5: Solve for x
    x = 20,627,521,516.69/165,673.20
  6. Step 6: Final answer
    x = 124,507.29

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1.5x scale

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.