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Finding the Fourth Proportional to 143,273.48, 214,917.30 and 54,533.86

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Solution

The fourth proportional to 143,273.48, 214,917.30 and 54,533.86 is: 81,803.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,273.48 : 214,917.30 = 54,533.86 : x
  2. Step 2: Convert to fraction form
    143,273.48/214,917.30 = 54,533.86/x
  3. Step 3: Cross multiply
    143,273.48x = 214,917.30 × 54,533.86
  4. Step 4: Simplify right side
    143,273.48x = 11,720,269,412.48
  5. Step 5: Solve for x
    x = 11,720,269,412.48/143,273.48
  6. Step 6: Final answer
    x = 81,803.48

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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.