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Finding the Fourth Proportional to 143,900.37, 214,784.81 and 135,035.73

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Solution

The fourth proportional to 143,900.37, 214,784.81 and 135,035.73 is: 201,553.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,900.37 : 214,784.81 = 135,035.73 : x
  2. Step 2: Convert to fraction form
    143,900.37/214,784.81 = 135,035.73/x
  3. Step 3: Cross multiply
    143,900.37x = 214,784.81 × 135,035.73
  4. Step 4: Simplify right side
    143,900.37x = 29,003,622,936.08
  5. Step 5: Solve for x
    x = 29,003,622,936.08/143,900.37
  6. Step 6: Final answer
    x = 201,553.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.