Home / 102,418.48-141,257.38-66,619.92

Finding the Fourth Proportional to 102,418.48, 141,257.38 and 66,619.92

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Solution

The fourth proportional to 102,418.48, 141,257.38 and 66,619.92 is: 91,883.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,418.48 : 141,257.38 = 66,619.92 : x
  2. Step 2: Convert to fraction form
    102,418.48/141,257.38 = 66,619.92/x
  3. Step 3: Cross multiply
    102,418.48x = 141,257.38 × 66,619.92
  4. Step 4: Simplify right side
    102,418.48x = 9,410,555,355.01
  5. Step 5: Solve for x
    x = 9,410,555,355.01/102,418.48
  6. Step 6: Final answer
    x = 91,883.37

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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.