Home / 115,250.48-158,986.38-76,997.82

Finding the Fourth Proportional to 115,250.48, 158,986.38 and 76,997.82

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Solution

The fourth proportional to 115,250.48, 158,986.38 and 76,997.82 is: 106,217.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,250.48 : 158,986.38 = 76,997.82 : x
  2. Step 2: Convert to fraction form
    115,250.48/158,986.38 = 76,997.82/x
  3. Step 3: Cross multiply
    115,250.48x = 158,986.38 × 76,997.82
  4. Step 4: Simplify right side
    115,250.48x = 12,241,604,669.69
  5. Step 5: Solve for x
    x = 12,241,604,669.69/115,250.48
  6. Step 6: Final answer
    x = 106,217.39

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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.