Home / 205,150.35-307,694.74-64,890.75

Finding the Fourth Proportional to 205,150.35, 307,694.74 and 64,890.75

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Solution

The fourth proportional to 205,150.35, 307,694.74 and 64,890.75 is: 97,326.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,150.35 : 307,694.74 = 64,890.75 : x
  2. Step 2: Convert to fraction form
    205,150.35/307,694.74 = 64,890.75/x
  3. Step 3: Cross multiply
    205,150.35x = 307,694.74 × 64,890.75
  4. Step 4: Simplify right side
    205,150.35x = 19,966,542,449.66
  5. Step 5: Solve for x
    x = 19,966,542,449.66/205,150.35
  6. Step 6: Final answer
    x = 97,326.39

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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.