Home / 111,091.20-167,025.60-108,758.40

Finding the Fourth Proportional to 111,091.20, 167,025.60 and 108,758.40

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Solution

The fourth proportional to 111,091.20, 167,025.60 and 108,758.40 is: 163,518.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,091.20 : 167,025.60 = 108,758.40 : x
  2. Step 2: Convert to fraction form
    111,091.20/167,025.60 = 108,758.40/x
  3. Step 3: Cross multiply
    111,091.20x = 167,025.60 × 108,758.40
  4. Step 4: Simplify right side
    111,091.20x = 18,165,437,015.04
  5. Step 5: Solve for x
    x = 18,165,437,015.04/111,091.20
  6. Step 6: Final answer
    x = 163,518.24

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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.