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Finding the Fourth Proportional to 143,253.93, 214,777.97 and 67,309.65

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Solution

The fourth proportional to 143,253.93, 214,777.97 and 67,309.65 is: 100,916.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,253.93 : 214,777.97 = 67,309.65 : x
  2. Step 2: Convert to fraction form
    143,253.93/214,777.97 = 67,309.65/x
  3. Step 3: Cross multiply
    143,253.93x = 214,777.97 × 67,309.65
  4. Step 4: Simplify right side
    143,253.93x = 14,456,628,914.52
  5. Step 5: Solve for x
    x = 14,456,628,914.52/143,253.93
  6. Step 6: Final answer
    x = 100,916.11

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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.