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Finding the Fourth Proportional to 143,652.87, 215,669.76 and 122,727.38

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Solution

The fourth proportional to 143,652.87, 215,669.76 and 122,727.38 is: 184,253.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,652.87 : 215,669.76 = 122,727.38 : x
  2. Step 2: Convert to fraction form
    143,652.87/215,669.76 = 122,727.38/x
  3. Step 3: Cross multiply
    143,652.87x = 215,669.76 × 122,727.38
  4. Step 4: Simplify right side
    143,652.87x = 26,468,584,590.03
  5. Step 5: Solve for x
    x = 26,468,584,590.03/143,652.87
  6. Step 6: Final answer
    x = 184,253.78

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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.