Home / 215,133.72-322,688.22-82,027.40

Finding the Fourth Proportional to 215,133.72, 322,688.22 and 82,027.40

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Solution

The fourth proportional to 215,133.72, 322,688.22 and 82,027.40 is: 123,036.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,133.72 : 322,688.22 = 82,027.40 : x
  2. Step 2: Convert to fraction form
    215,133.72/322,688.22 = 82,027.40/x
  3. Step 3: Cross multiply
    215,133.72x = 322,688.22 × 82,027.40
  4. Step 4: Simplify right side
    215,133.72x = 26,469,275,697.23
  5. Step 5: Solve for x
    x = 26,469,275,697.23/215,133.72
  6. Step 6: Final answer
    x = 123,036.39

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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.