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Finding the Fourth Proportional to 143,164.74, 214,420.08 and 68,337.56

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Solution

The fourth proportional to 143,164.74, 214,420.08 and 68,337.56 is: 102,350.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,164.74 : 214,420.08 = 68,337.56 : x
  2. Step 2: Convert to fraction form
    143,164.74/214,420.08 = 68,337.56/x
  3. Step 3: Cross multiply
    143,164.74x = 214,420.08 × 68,337.56
  4. Step 4: Simplify right side
    143,164.74x = 14,652,944,010.10
  5. Step 5: Solve for x
    x = 14,652,944,010.10/143,164.74
  6. Step 6: Final answer
    x = 102,350.23

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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.