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Finding the Fourth Proportional to 117,951.86, 162,772.44 and 64,237.78

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Solution

The fourth proportional to 117,951.86, 162,772.44 and 64,237.78 is: 88,647.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,951.86 : 162,772.44 = 64,237.78 : x
  2. Step 2: Convert to fraction form
    117,951.86/162,772.44 = 64,237.78/x
  3. Step 3: Cross multiply
    117,951.86x = 162,772.44 × 64,237.78
  4. Step 4: Simplify right side
    117,951.86x = 10,456,139,623.26
  5. Step 5: Solve for x
    x = 10,456,139,623.26/117,951.86
  6. Step 6: Final answer
    x = 88,647.52

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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.