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Finding the Fourth Proportional to 117,179.61, 161,706.94 and 63,463.38

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Solution

The fourth proportional to 117,179.61, 161,706.94 and 63,463.38 is: 87,578.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,179.61 : 161,706.94 = 63,463.38 : x
  2. Step 2: Convert to fraction form
    117,179.61/161,706.94 = 63,463.38/x
  3. Step 3: Cross multiply
    117,179.61x = 161,706.94 × 63,463.38
  4. Step 4: Simplify right side
    117,179.61x = 10,262,468,981.86
  5. Step 5: Solve for x
    x = 10,262,468,981.86/117,179.61
  6. Step 6: Final answer
    x = 87,578.97

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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.