Home / 208,723.82-313,131.10-68,477.18

Finding the Fourth Proportional to 208,723.82, 313,131.10 and 68,477.18

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Solution

The fourth proportional to 208,723.82, 313,131.10 and 68,477.18 is: 102,730.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,723.82 : 313,131.10 = 68,477.18 : x
  2. Step 2: Convert to fraction form
    208,723.82/313,131.10 = 68,477.18/x
  3. Step 3: Cross multiply
    208,723.82x = 313,131.10 × 68,477.18
  4. Step 4: Simplify right side
    208,723.82x = 21,442,334,698.30
  5. Step 5: Solve for x
    x = 21,442,334,698.30/208,723.82
  6. Step 6: Final answer
    x = 102,730.65

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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.