Home / 117,910.28-162,729.20-72,579.24

Finding the Fourth Proportional to 117,910.28, 162,729.20 and 72,579.24

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Solution

The fourth proportional to 117,910.28, 162,729.20 and 72,579.24 is: 100,167.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,910.28 : 162,729.20 = 72,579.24 : x
  2. Step 2: Convert to fraction form
    117,910.28/162,729.20 = 72,579.24/x
  3. Step 3: Cross multiply
    117,910.28x = 162,729.20 × 72,579.24
  4. Step 4: Simplify right side
    117,910.28x = 11,810,761,843.26
  5. Step 5: Solve for x
    x = 11,810,761,843.26/117,910.28
  6. Step 6: Final answer
    x = 100,167.36

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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.