Home / 108,863.37-163,419.61-66,763.28

Finding the Fourth Proportional to 108,863.37, 163,419.61 and 66,763.28

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Solution

The fourth proportional to 108,863.37, 163,419.61 and 66,763.28 is: 100,221.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,863.37 : 163,419.61 = 66,763.28 : x
  2. Step 2: Convert to fraction form
    108,863.37/163,419.61 = 66,763.28/x
  3. Step 3: Cross multiply
    108,863.37x = 163,419.61 × 66,763.28
  4. Step 4: Simplify right side
    108,863.37x = 10,910,429,179.92
  5. Step 5: Solve for x
    x = 10,910,429,179.92/108,863.37
  6. Step 6: Final answer
    x = 100,221.31

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1.5x scale

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.