Home / 143,209.89-214,487.61-68,382.44

Finding the Fourth Proportional to 143,209.89, 214,487.61 and 68,382.44

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Solution

The fourth proportional to 143,209.89, 214,487.61 and 68,382.44 is: 102,417.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,209.89 : 214,487.61 = 68,382.44 : x
  2. Step 2: Convert to fraction form
    143,209.89/214,487.61 = 68,382.44/x
  3. Step 3: Cross multiply
    143,209.89x = 214,487.61 × 68,382.44
  4. Step 4: Simplify right side
    143,209.89x = 14,667,187,188.17
  5. Step 5: Solve for x
    x = 14,667,187,188.17/143,209.89
  6. Step 6: Final answer
    x = 102,417.42

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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.