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Finding the Fourth Proportional to 135,336.71, 202,912.80 and 68,648.25

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Solution

The fourth proportional to 135,336.71, 202,912.80 and 68,648.25 is: 102,925.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,336.71 : 202,912.80 = 68,648.25 : x
  2. Step 2: Convert to fraction form
    135,336.71/202,912.80 = 68,648.25/x
  3. Step 3: Cross multiply
    135,336.71x = 202,912.80 × 68,648.25
  4. Step 4: Simplify right side
    135,336.71x = 13,929,608,622.60
  5. Step 5: Solve for x
    x = 13,929,608,622.60/135,336.71
  6. Step 6: Final answer
    x = 102,925.57

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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.