Home / 156,835.86-235,121.55-68,022.48

Finding the Fourth Proportional to 156,835.86, 235,121.55 and 68,022.48

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Solution

The fourth proportional to 156,835.86, 235,121.55 and 68,022.48 is: 101,976.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,835.86 : 235,121.55 = 68,022.48 : x
  2. Step 2: Convert to fraction form
    156,835.86/235,121.55 = 68,022.48/x
  3. Step 3: Cross multiply
    156,835.86x = 235,121.55 × 68,022.48
  4. Step 4: Simplify right side
    156,835.86x = 15,993,550,932.44
  5. Step 5: Solve for x
    x = 15,993,550,932.44/156,835.86
  6. Step 6: Final answer
    x = 101,976.37

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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.