Home / 143,353.20-215,004.60-54,612.03

Finding the Fourth Proportional to 143,353.20, 215,004.60 and 54,612.03

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Solution

The fourth proportional to 143,353.20, 215,004.60 and 54,612.03 is: 81,908.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,353.20 : 215,004.60 = 54,612.03 : x
  2. Step 2: Convert to fraction form
    143,353.20/215,004.60 = 54,612.03/x
  3. Step 3: Cross multiply
    143,353.20x = 215,004.60 × 54,612.03
  4. Step 4: Simplify right side
    143,353.20x = 11,741,837,665.34
  5. Step 5: Solve for x
    x = 11,741,837,665.34/143,353.20
  6. Step 6: Final answer
    x = 81,908.44

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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.