Home / 215,077.08-322,608.33-81,952.56

Finding the Fourth Proportional to 215,077.08, 322,608.33 and 81,952.56

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Solution

The fourth proportional to 215,077.08, 322,608.33 and 81,952.56 is: 122,926.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,077.08 : 322,608.33 = 81,952.56 : x
  2. Step 2: Convert to fraction form
    215,077.08/322,608.33 = 81,952.56/x
  3. Step 3: Cross multiply
    215,077.08x = 322,608.33 × 81,952.56
  4. Step 4: Simplify right side
    215,077.08x = 26,438,578,520.82
  5. Step 5: Solve for x
    x = 26,438,578,520.82/215,077.08
  6. Step 6: Final answer
    x = 122,926.06

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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.