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Finding the Fourth Proportional to 137,812.30, 206,706.30 and 37,963.60

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Solution

The fourth proportional to 137,812.30, 206,706.30 and 37,963.60 is: 56,942.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,812.30 : 206,706.30 = 37,963.60 : x
  2. Step 2: Convert to fraction form
    137,812.30/206,706.30 = 37,963.60/x
  3. Step 3: Cross multiply
    137,812.30x = 206,706.30 × 37,963.60
  4. Step 4: Simplify right side
    137,812.30x = 7,847,315,290.68
  5. Step 5: Solve for x
    x = 7,847,315,290.68/137,812.30
  6. Step 6: Final answer
    x = 56,942.05

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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.