Home / 156,682.20-235,152.90-72,571.80

Finding the Fourth Proportional to 156,682.20, 235,152.90 and 72,571.80

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Solution

The fourth proportional to 156,682.20, 235,152.90 and 72,571.80 is: 108,917.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,682.20 : 235,152.90 = 72,571.80 : x
  2. Step 2: Convert to fraction form
    156,682.20/235,152.90 = 72,571.80/x
  3. Step 3: Cross multiply
    156,682.20x = 235,152.90 × 72,571.80
  4. Step 4: Simplify right side
    156,682.20x = 17,065,469,228.22
  5. Step 5: Solve for x
    x = 17,065,469,228.22/156,682.20
  6. Step 6: Final answer
    x = 108,917.73

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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.