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Finding the Fourth Proportional to 199,573.58, 299,184.32 and 81,343.82

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Solution

The fourth proportional to 199,573.58, 299,184.32 and 81,343.82 is: 121,943.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,573.58 : 299,184.32 = 81,343.82 : x
  2. Step 2: Convert to fraction form
    199,573.58/299,184.32 = 81,343.82/x
  3. Step 3: Cross multiply
    199,573.58x = 299,184.32 × 81,343.82
  4. Step 4: Simplify right side
    199,573.58x = 24,336,795,472.90
  5. Step 5: Solve for x
    x = 24,336,795,472.90/199,573.58
  6. Step 6: Final answer
    x = 121,943.97

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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.