Home / 193,717.24-290,431.60-81,430.36

Finding the Fourth Proportional to 193,717.24, 290,431.60 and 81,430.36

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Solution

The fourth proportional to 193,717.24, 290,431.60 and 81,430.36 is: 122,084.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,717.24 : 290,431.60 = 81,430.36 : x
  2. Step 2: Convert to fraction form
    193,717.24/290,431.60 = 81,430.36/x
  3. Step 3: Cross multiply
    193,717.24x = 290,431.60 × 81,430.36
  4. Step 4: Simplify right side
    193,717.24x = 23,649,949,743.38
  5. Step 5: Solve for x
    x = 23,649,949,743.38/193,717.24
  6. Step 6: Final answer
    x = 122,084.90

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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.