Home / 207,930.26-311,933.82-65,811.35

Finding the Fourth Proportional to 207,930.26, 311,933.82 and 65,811.35

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Solution

The fourth proportional to 207,930.26, 311,933.82 and 65,811.35 is: 98,729.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,930.26 : 311,933.82 = 65,811.35 : x
  2. Step 2: Convert to fraction form
    207,930.26/311,933.82 = 65,811.35/x
  3. Step 3: Cross multiply
    207,930.26x = 311,933.82 × 65,811.35
  4. Step 4: Simplify right side
    207,930.26x = 20,528,785,804.86
  5. Step 5: Solve for x
    x = 20,528,785,804.86/207,930.26
  6. Step 6: Final answer
    x = 98,729.19

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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.