Home / 113,745.75-156,918.42-65,971.41

Finding the Fourth Proportional to 113,745.75, 156,918.42 and 65,971.41

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Solution

The fourth proportional to 113,745.75, 156,918.42 and 65,971.41 is: 91,011.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,745.75 : 156,918.42 = 65,971.41 : x
  2. Step 2: Convert to fraction form
    113,745.75/156,918.42 = 65,971.41/x
  3. Step 3: Cross multiply
    113,745.75x = 156,918.42 × 65,971.41
  4. Step 4: Simplify right side
    113,745.75x = 10,352,129,422.37
  5. Step 5: Solve for x
    x = 10,352,129,422.37/113,745.75
  6. Step 6: Final answer
    x = 91,011.13

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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.