Home / 156,991.20-235,469.30-43,147.74

Finding the Fourth Proportional to 156,991.20, 235,469.30 and 43,147.74

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Solution

The fourth proportional to 156,991.20, 235,469.30 and 43,147.74 is: 64,716.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,991.20 : 235,469.30 = 43,147.74 : x
  2. Step 2: Convert to fraction form
    156,991.20/235,469.30 = 43,147.74/x
  3. Step 3: Cross multiply
    156,991.20x = 235,469.30 × 43,147.74
  4. Step 4: Simplify right side
    156,991.20x = 10,159,968,134.38
  5. Step 5: Solve for x
    x = 10,159,968,134.38/156,991.20
  6. Step 6: Final answer
    x = 64,716.80

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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.