Home / 230,012.20-345,029.10-72,245.80

Finding the Fourth Proportional to 230,012.20, 345,029.10 and 72,245.80

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Solution

The fourth proportional to 230,012.20, 345,029.10 and 72,245.80 is: 108,372.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,012.20 : 345,029.10 = 72,245.80 : x
  2. Step 2: Convert to fraction form
    230,012.20/345,029.10 = 72,245.80/x
  3. Step 3: Cross multiply
    230,012.20x = 345,029.10 × 72,245.80
  4. Step 4: Simplify right side
    230,012.20x = 24,926,903,352.78
  5. Step 5: Solve for x
    x = 24,926,903,352.78/230,012.20
  6. Step 6: Final answer
    x = 108,372.09

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1.5x scale

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.