Home / 260,636.10-390,961.44-92,132.61

Finding the Fourth Proportional to 260,636.10, 390,961.44 and 92,132.61

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Solution

The fourth proportional to 260,636.10, 390,961.44 and 92,132.61 is: 138,201.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,636.10 : 390,961.44 = 92,132.61 : x
  2. Step 2: Convert to fraction form
    260,636.10/390,961.44 = 92,132.61/x
  3. Step 3: Cross multiply
    260,636.10x = 390,961.44 × 92,132.61
  4. Step 4: Simplify right side
    260,636.10x = 36,020,297,876.56
  5. Step 5: Solve for x
    x = 36,020,297,876.56/260,636.10
  6. Step 6: Final answer
    x = 138,201.49

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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.