Home / 143,123.22-214,684.83-54,355.86

Finding the Fourth Proportional to 143,123.22, 214,684.83 and 54,355.86

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Solution

The fourth proportional to 143,123.22, 214,684.83 and 54,355.86 is: 81,533.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,123.22 : 214,684.83 = 54,355.86 : x
  2. Step 2: Convert to fraction form
    143,123.22/214,684.83 = 54,355.86/x
  3. Step 3: Cross multiply
    143,123.22x = 214,684.83 × 54,355.86
  4. Step 4: Simplify right side
    143,123.22x = 11,669,378,563.60
  5. Step 5: Solve for x
    x = 11,669,378,563.60/143,123.22
  6. Step 6: Final answer
    x = 81,533.79

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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.