Home / 115,788.72-159,805.62-73,351.20

Finding the Fourth Proportional to 115,788.72, 159,805.62 and 73,351.20

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Solution

The fourth proportional to 115,788.72, 159,805.62 and 73,351.20 is: 101,235.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,788.72 : 159,805.62 = 73,351.20 : x
  2. Step 2: Convert to fraction form
    115,788.72/159,805.62 = 73,351.20/x
  3. Step 3: Cross multiply
    115,788.72x = 159,805.62 × 73,351.20
  4. Step 4: Simplify right side
    115,788.72x = 11,721,933,993.74
  5. Step 5: Solve for x
    x = 11,721,933,993.74/115,788.72
  6. Step 6: Final answer
    x = 101,235.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.