Home / 156,968.10-235,452.15-68,321.70

Finding the Fourth Proportional to 156,968.10, 235,452.15 and 68,321.70

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Solution

The fourth proportional to 156,968.10, 235,452.15 and 68,321.70 is: 102,482.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,968.10 : 235,452.15 = 68,321.70 : x
  2. Step 2: Convert to fraction form
    156,968.10/235,452.15 = 68,321.70/x
  3. Step 3: Cross multiply
    156,968.10x = 235,452.15 × 68,321.70
  4. Step 4: Simplify right side
    156,968.10x = 16,086,491,156.66
  5. Step 5: Solve for x
    x = 16,086,491,156.66/156,968.10
  6. Step 6: Final answer
    x = 102,482.55

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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.