Home / 111,864.20-167,796.30-107,563.40

Finding the Fourth Proportional to 111,864.20, 167,796.30 and 107,563.40

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Solution

The fourth proportional to 111,864.20, 167,796.30 and 107,563.40 is: 161,345.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,864.20 : 167,796.30 = 107,563.40 : x
  2. Step 2: Convert to fraction form
    111,864.20/167,796.30 = 107,563.40/x
  3. Step 3: Cross multiply
    111,864.20x = 167,796.30 × 107,563.40
  4. Step 4: Simplify right side
    111,864.20x = 18,048,740,535.42
  5. Step 5: Solve for x
    x = 18,048,740,535.42/111,864.20
  6. Step 6: Final answer
    x = 161,345.10

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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.