Home / 156,835.89-235,121.58-68,022.51

Finding the Fourth Proportional to 156,835.89, 235,121.58 and 68,022.51

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Solution

The fourth proportional to 156,835.89, 235,121.58 and 68,022.51 is: 101,976.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,835.89 : 235,121.58 = 68,022.51 : x
  2. Step 2: Convert to fraction form
    156,835.89/235,121.58 = 68,022.51/x
  3. Step 3: Cross multiply
    156,835.89x = 235,121.58 × 68,022.51
  4. Step 4: Simplify right side
    156,835.89x = 15,993,558,511.05
  5. Step 5: Solve for x
    x = 15,993,558,511.05/156,835.89
  6. Step 6: Final answer
    x = 101,976.39

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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.