Home / 208,716.18-313,008.57-68,442.06

Finding the Fourth Proportional to 208,716.18, 313,008.57 and 68,442.06

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Solution

The fourth proportional to 208,716.18, 313,008.57 and 68,442.06 is: 102,641.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,716.18 : 313,008.57 = 68,442.06 : x
  2. Step 2: Convert to fraction form
    208,716.18/313,008.57 = 68,442.06/x
  3. Step 3: Cross multiply
    208,716.18x = 313,008.57 × 68,442.06
  4. Step 4: Simplify right side
    208,716.18x = 21,422,951,328.45
  5. Step 5: Solve for x
    x = 21,422,951,328.45/208,716.18
  6. Step 6: Final answer
    x = 102,641.55

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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.