Home / 111,613.20-167,205.96-107,861.28

Finding the Fourth Proportional to 111,613.20, 167,205.96 and 107,861.28

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Solution

The fourth proportional to 111,613.20, 167,205.96 and 107,861.28 is: 161,585.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,613.20 : 167,205.96 = 107,861.28 : x
  2. Step 2: Convert to fraction form
    111,613.20/167,205.96 = 107,861.28/x
  3. Step 3: Cross multiply
    111,613.20x = 167,205.96 × 107,861.28
  4. Step 4: Simplify right side
    111,613.20x = 18,035,048,869.23
  5. Step 5: Solve for x
    x = 18,035,048,869.23/111,613.20
  6. Step 6: Final answer
    x = 161,585.27

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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.