Home / 143,032.35-214,286.88-66,991.27

Finding the Fourth Proportional to 143,032.35, 214,286.88 and 66,991.27

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Solution

The fourth proportional to 143,032.35, 214,286.88 and 66,991.27 is: 100,364.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,032.35 : 214,286.88 = 66,991.27 : x
  2. Step 2: Convert to fraction form
    143,032.35/214,286.88 = 66,991.27/x
  3. Step 3: Cross multiply
    143,032.35x = 214,286.88 × 66,991.27
  4. Step 4: Simplify right side
    143,032.35x = 14,355,350,235.54
  5. Step 5: Solve for x
    x = 14,355,350,235.54/143,032.35
  6. Step 6: Final answer
    x = 100,364.36

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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.