Home / 117,481.47-162,120.09-63,765.34

Finding the Fourth Proportional to 117,481.47, 162,120.09 and 63,765.34

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Solution

The fourth proportional to 117,481.47, 162,120.09 and 63,765.34 is: 87,993.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,481.47 : 162,120.09 = 63,765.34 : x
  2. Step 2: Convert to fraction form
    117,481.47/162,120.09 = 63,765.34/x
  3. Step 3: Cross multiply
    117,481.47x = 162,120.09 × 63,765.34
  4. Step 4: Simplify right side
    117,481.47x = 10,337,642,340.85
  5. Step 5: Solve for x
    x = 10,337,642,340.85/117,481.47
  6. Step 6: Final answer
    x = 87,993.81

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1.5x scale

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.