Home / 109,078.20-163,617.30-108,300.60

Finding the Fourth Proportional to 109,078.20, 163,617.30 and 108,300.60

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Solution

The fourth proportional to 109,078.20, 163,617.30 and 108,300.60 is: 162,450.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,078.20 : 163,617.30 = 108,300.60 : x
  2. Step 2: Convert to fraction form
    109,078.20/163,617.30 = 108,300.60/x
  3. Step 3: Cross multiply
    109,078.20x = 163,617.30 × 108,300.60
  4. Step 4: Simplify right side
    109,078.20x = 17,719,851,760.38
  5. Step 5: Solve for x
    x = 17,719,851,760.38/109,078.20
  6. Step 6: Final answer
    x = 162,450.90

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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.