Home / 108,530.20-162,795.30-69,115.60

Finding the Fourth Proportional to 108,530.20, 162,795.30 and 69,115.60

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Solution

The fourth proportional to 108,530.20, 162,795.30 and 69,115.60 is: 103,673.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,530.20 : 162,795.30 = 69,115.60 : x
  2. Step 2: Convert to fraction form
    108,530.20/162,795.30 = 69,115.60/x
  3. Step 3: Cross multiply
    108,530.20x = 162,795.30 × 69,115.60
  4. Step 4: Simplify right side
    108,530.20x = 11,251,694,836.68
  5. Step 5: Solve for x
    x = 11,251,694,836.68/108,530.20
  6. Step 6: Final answer
    x = 103,673.40

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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.