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Finding the Fourth Proportional to 118,520.20, 177,780.30 and 108,843.40

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Solution

The fourth proportional to 118,520.20, 177,780.30 and 108,843.40 is: 163,265.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,520.20 : 177,780.30 = 108,843.40 : x
  2. Step 2: Convert to fraction form
    118,520.20/177,780.30 = 108,843.40/x
  3. Step 3: Cross multiply
    118,520.20x = 177,780.30 × 108,843.40
  4. Step 4: Simplify right side
    118,520.20x = 19,350,212,305.02
  5. Step 5: Solve for x
    x = 19,350,212,305.02/118,520.20
  6. Step 6: Final answer
    x = 163,265.10

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1.5x scale

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.