Home / 209,936.52-314,872.32-76,785.64

Finding the Fourth Proportional to 209,936.52, 314,872.32 and 76,785.64

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Solution

The fourth proportional to 209,936.52, 314,872.32 and 76,785.64 is: 115,166.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,936.52 : 314,872.32 = 76,785.64 : x
  2. Step 2: Convert to fraction form
    209,936.52/314,872.32 = 76,785.64/x
  3. Step 3: Cross multiply
    209,936.52x = 314,872.32 × 76,785.64
  4. Step 4: Simplify right side
    209,936.52x = 24,177,672,609.48
  5. Step 5: Solve for x
    x = 24,177,672,609.48/209,936.52
  6. Step 6: Final answer
    x = 115,166.59

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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.