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Finding the Fourth Proportional to 117,604.36, 162,295.14 and 63,889.78

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Solution

The fourth proportional to 117,604.36, 162,295.14 and 63,889.78 is: 88,168.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,604.36 : 162,295.14 = 63,889.78 : x
  2. Step 2: Convert to fraction form
    117,604.36/162,295.14 = 63,889.78/x
  3. Step 3: Cross multiply
    117,604.36x = 162,295.14 × 63,889.78
  4. Step 4: Simplify right side
    117,604.36x = 10,369,000,789.67
  5. Step 5: Solve for x
    x = 10,369,000,789.67/117,604.36
  6. Step 6: Final answer
    x = 88,168.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.