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Finding the Fourth Proportional to 72,127.52, 108,205.22 and 22,198.76

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Solution

The fourth proportional to 72,127.52, 108,205.22 and 22,198.76 is: 33,302.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,127.52 : 108,205.22 = 22,198.76 : x
  2. Step 2: Convert to fraction form
    72,127.52/108,205.22 = 22,198.76/x
  3. Step 3: Cross multiply
    72,127.52x = 108,205.22 × 22,198.76
  4. Step 4: Simplify right side
    72,127.52x = 2,402,021,709.53
  5. Step 5: Solve for x
    x = 2,402,021,709.53/72,127.52
  6. Step 6: Final answer
    x = 33,302.43

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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.