Home / 99,615.36-149,405.76-25,743.36

Finding the Fourth Proportional to 99,615.36, 149,405.76 and 25,743.36

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Solution

The fourth proportional to 99,615.36, 149,405.76 and 25,743.36 is: 38,610.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,615.36 : 149,405.76 = 25,743.36 : x
  2. Step 2: Convert to fraction form
    99,615.36/149,405.76 = 25,743.36/x
  3. Step 3: Cross multiply
    99,615.36x = 149,405.76 × 25,743.36
  4. Step 4: Simplify right side
    99,615.36x = 3,846,206,265.75
  5. Step 5: Solve for x
    x = 3,846,206,265.75/99,615.36
  6. Step 6: Final answer
    x = 38,610.57

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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.