Home / 168,587.10-252,953.55-85,481.10

Finding the Fourth Proportional to 168,587.10, 252,953.55 and 85,481.10

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Solution

The fourth proportional to 168,587.10, 252,953.55 and 85,481.10 is: 128,258.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,587.10 : 252,953.55 = 85,481.10 : x
  2. Step 2: Convert to fraction form
    168,587.10/252,953.55 = 85,481.10/x
  3. Step 3: Cross multiply
    168,587.10x = 252,953.55 × 85,481.10
  4. Step 4: Simplify right side
    168,587.10x = 21,622,747,702.91
  5. Step 5: Solve for x
    x = 21,622,747,702.91/168,587.10
  6. Step 6: Final answer
    x = 128,258.61

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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.