Home / 193,610.16-290,529.36-81,310.08

Finding the Fourth Proportional to 193,610.16, 290,529.36 and 81,310.08

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Solution

The fourth proportional to 193,610.16, 290,529.36 and 81,310.08 is: 122,013.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,610.16 : 290,529.36 = 81,310.08 : x
  2. Step 2: Convert to fraction form
    193,610.16/290,529.36 = 81,310.08/x
  3. Step 3: Cross multiply
    193,610.16x = 290,529.36 × 81,310.08
  4. Step 4: Simplify right side
    193,610.16x = 23,622,965,503.95
  5. Step 5: Solve for x
    x = 23,622,965,503.95/193,610.16
  6. Step 6: Final answer
    x = 122,013.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.