Home / 205,102.64-307,791.24-71,983.52

Finding the Fourth Proportional to 205,102.64, 307,791.24 and 71,983.52

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Solution

The fourth proportional to 205,102.64, 307,791.24 and 71,983.52 is: 108,023.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,102.64 : 307,791.24 = 71,983.52 : x
  2. Step 2: Convert to fraction form
    205,102.64/307,791.24 = 71,983.52/x
  3. Step 3: Cross multiply
    205,102.64x = 307,791.24 × 71,983.52
  4. Step 4: Simplify right side
    205,102.64x = 22,155,896,880.36
  5. Step 5: Solve for x
    x = 22,155,896,880.36/205,102.64
  6. Step 6: Final answer
    x = 108,023.46

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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.