Home / 165,671.20-228,628.88-90,219.64

Finding the Fourth Proportional to 165,671.20, 228,628.88 and 90,219.64

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Solution

The fourth proportional to 165,671.20, 228,628.88 and 90,219.64 is: 124,504.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,671.20 : 228,628.88 = 90,219.64 : x
  2. Step 2: Convert to fraction form
    165,671.20/228,628.88 = 90,219.64/x
  3. Step 3: Cross multiply
    165,671.20x = 228,628.88 × 90,219.64
  4. Step 4: Simplify right side
    165,671.20x = 20,626,815,247.20
  5. Step 5: Solve for x
    x = 20,626,815,247.20/165,671.20
  6. Step 6: Final answer
    x = 124,504.53

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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.