Home / 215,378.25-323,067.45-96,911.20

Finding the Fourth Proportional to 215,378.25, 323,067.45 and 96,911.20

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Solution

The fourth proportional to 215,378.25, 323,067.45 and 96,911.20 is: 145,366.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,378.25 : 323,067.45 = 96,911.20 : x
  2. Step 2: Convert to fraction form
    215,378.25/323,067.45 = 96,911.20/x
  3. Step 3: Cross multiply
    215,378.25x = 323,067.45 × 96,911.20
  4. Step 4: Simplify right side
    215,378.25x = 31,308,853,210.44
  5. Step 5: Solve for x
    x = 31,308,853,210.44/215,378.25
  6. Step 6: Final answer
    x = 145,366.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.