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Finding the Fourth Proportional to 118,685.52, 177,974.43 and 51,185.64

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Solution

The fourth proportional to 118,685.52, 177,974.43 and 51,185.64 is: 76,755.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,685.52 : 177,974.43 = 51,185.64 : x
  2. Step 2: Convert to fraction form
    118,685.52/177,974.43 = 51,185.64/x
  3. Step 3: Cross multiply
    118,685.52x = 177,974.43 × 51,185.64
  4. Step 4: Simplify right side
    118,685.52x = 9,109,735,103.19
  5. Step 5: Solve for x
    x = 9,109,735,103.19/118,685.52
  6. Step 6: Final answer
    x = 76,755.24

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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.