Home / 135,974.03-187,670.99-86,884.25

Finding the Fourth Proportional to 135,974.03, 187,670.99 and 86,884.25

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Solution

The fourth proportional to 135,974.03, 187,670.99 and 86,884.25 is: 119,917.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,974.03 : 187,670.99 = 86,884.25 : x
  2. Step 2: Convert to fraction form
    135,974.03/187,670.99 = 86,884.25/x
  3. Step 3: Cross multiply
    135,974.03x = 187,670.99 × 86,884.25
  4. Step 4: Simplify right side
    135,974.03x = 16,305,652,491.76
  5. Step 5: Solve for x
    x = 16,305,652,491.76/135,974.03
  6. Step 6: Final answer
    x = 119,917.41

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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.