Home / 143,273.09-214,614.33-83,928.85

Finding the Fourth Proportional to 143,273.09, 214,614.33 and 83,928.85

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Solution

The fourth proportional to 143,273.09, 214,614.33 and 83,928.85 is: 125,720.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,273.09 : 214,614.33 = 83,928.85 : x
  2. Step 2: Convert to fraction form
    143,273.09/214,614.33 = 83,928.85/x
  3. Step 3: Cross multiply
    143,273.09x = 214,614.33 × 83,928.85
  4. Step 4: Simplify right side
    143,273.09x = 18,012,333,059.15
  5. Step 5: Solve for x
    x = 18,012,333,059.15/143,273.09
  6. Step 6: Final answer
    x = 125,720.28

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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.