Home / 207,826.11-311,176.08-107,776.50

Finding the Fourth Proportional to 207,826.11, 311,176.08 and 107,776.50

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Solution

The fourth proportional to 207,826.11, 311,176.08 and 107,776.50 is: 161,372.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,826.11 : 311,176.08 = 107,776.50 : x
  2. Step 2: Convert to fraction form
    207,826.11/311,176.08 = 107,776.50/x
  3. Step 3: Cross multiply
    207,826.11x = 311,176.08 × 107,776.50
  4. Step 4: Simplify right side
    207,826.11x = 33,537,468,786.12
  5. Step 5: Solve for x
    x = 33,537,468,786.12/207,826.11
  6. Step 6: Final answer
    x = 161,372.74

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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.