Home / 137,576.43-206,364.65-90,818.37

Finding the Fourth Proportional to 137,576.43, 206,364.65 and 90,818.37

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Solution

The fourth proportional to 137,576.43, 206,364.65 and 90,818.37 is: 136,227.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,576.43 : 206,364.65 = 90,818.37 : x
  2. Step 2: Convert to fraction form
    137,576.43/206,364.65 = 90,818.37/x
  3. Step 3: Cross multiply
    137,576.43x = 206,364.65 × 90,818.37
  4. Step 4: Simplify right side
    137,576.43x = 18,741,700,684.53
  5. Step 5: Solve for x
    x = 18,741,700,684.53/137,576.43
  6. Step 6: Final answer
    x = 136,227.56

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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.