Home / 140,625.10-193,879.42-89,619.22

Finding the Fourth Proportional to 140,625.10, 193,879.42 and 89,619.22

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Solution

The fourth proportional to 140,625.10, 193,879.42 and 89,619.22 is: 123,557.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,625.10 : 193,879.42 = 89,619.22 : x
  2. Step 2: Convert to fraction form
    140,625.10/193,879.42 = 89,619.22/x
  3. Step 3: Cross multiply
    140,625.10x = 193,879.42 × 89,619.22
  4. Step 4: Simplify right side
    140,625.10x = 17,375,322,394.45
  5. Step 5: Solve for x
    x = 17,375,322,394.45/140,625.10
  6. Step 6: Final answer
    x = 123,557.76

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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.