Home / 207,377.56-311,115.75-67,136.19

Finding the Fourth Proportional to 207,377.56, 311,115.75 and 67,136.19

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Solution

The fourth proportional to 207,377.56, 311,115.75 and 67,136.19 is: 100,720.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,377.56 : 311,115.75 = 67,136.19 : x
  2. Step 2: Convert to fraction form
    207,377.56/311,115.75 = 67,136.19/x
  3. Step 3: Cross multiply
    207,377.56x = 311,115.75 × 67,136.19
  4. Step 4: Simplify right side
    207,377.56x = 20,887,126,103.99
  5. Step 5: Solve for x
    x = 20,887,126,103.99/207,377.56
  6. Step 6: Final answer
    x = 100,720.28

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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.