Home / 156,823.80-235,257.30-68,074.80

Finding the Fourth Proportional to 156,823.80, 235,257.30 and 68,074.80

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Solution

The fourth proportional to 156,823.80, 235,257.30 and 68,074.80 is: 102,121.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,823.80 : 235,257.30 = 68,074.80 : x
  2. Step 2: Convert to fraction form
    156,823.80/235,257.30 = 68,074.80/x
  3. Step 3: Cross multiply
    156,823.80x = 235,257.30 × 68,074.80
  4. Step 4: Simplify right side
    156,823.80x = 16,015,093,646.04
  5. Step 5: Solve for x
    x = 16,015,093,646.04/156,823.80
  6. Step 6: Final answer
    x = 102,121.58

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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.