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Finding the Fourth Proportional to 118,759.75, 163,882.20 and 65,043.63

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Solution

The fourth proportional to 118,759.75, 163,882.20 and 65,043.63 is: 89,756.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,759.75 : 163,882.20 = 65,043.63 : x
  2. Step 2: Convert to fraction form
    118,759.75/163,882.20 = 65,043.63/x
  3. Step 3: Cross multiply
    118,759.75x = 163,882.20 × 65,043.63
  4. Step 4: Simplify right side
    118,759.75x = 10,659,493,180.39
  5. Step 5: Solve for x
    x = 10,659,493,180.39/118,759.75
  6. Step 6: Final answer
    x = 89,756.78

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1.5x scale

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.