Home / 108,068.20-162,198.30-63,639.40

Finding the Fourth Proportional to 108,068.20, 162,198.30 and 63,639.40

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Solution

The fourth proportional to 108,068.20, 162,198.30 and 63,639.40 is: 95,515.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,068.20 : 162,198.30 = 63,639.40 : x
  2. Step 2: Convert to fraction form
    108,068.20/162,198.30 = 63,639.40/x
  3. Step 3: Cross multiply
    108,068.20x = 162,198.30 × 63,639.40
  4. Step 4: Simplify right side
    108,068.20x = 10,322,202,493.02
  5. Step 5: Solve for x
    x = 10,322,202,493.02/108,068.20
  6. Step 6: Final answer
    x = 95,515.63

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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.