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Finding the Fourth Proportional to 72,156.51, 108,245.52 and 22,232.43

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Solution

The fourth proportional to 72,156.51, 108,245.52 and 22,232.43 is: 33,351.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,156.51 : 108,245.52 = 22,232.43 : x
  2. Step 2: Convert to fraction form
    72,156.51/108,245.52 = 22,232.43/x
  3. Step 3: Cross multiply
    72,156.51x = 108,245.52 × 22,232.43
  4. Step 4: Simplify right side
    72,156.51x = 2,406,560,293.82
  5. Step 5: Solve for x
    x = 2,406,560,293.82/72,156.51
  6. Step 6: Final answer
    x = 33,351.95

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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.