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Finding the Fourth Proportional to 137,701.80, 206,552.70 and 136,389.60

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Solution

The fourth proportional to 137,701.80, 206,552.70 and 136,389.60 is: 204,584.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,701.80 : 206,552.70 = 136,389.60 : x
  2. Step 2: Convert to fraction form
    137,701.80/206,552.70 = 136,389.60/x
  3. Step 3: Cross multiply
    137,701.80x = 206,552.70 × 136,389.60
  4. Step 4: Simplify right side
    137,701.80x = 28,171,640,131.92
  5. Step 5: Solve for x
    x = 28,171,640,131.92/137,701.80
  6. Step 6: Final answer
    x = 204,584.40

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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.