Home / 111,886.20-167,829.30-107,585.40

Finding the Fourth Proportional to 111,886.20, 167,829.30 and 107,585.40

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Solution

The fourth proportional to 111,886.20, 167,829.30 and 107,585.40 is: 161,378.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,886.20 : 167,829.30 = 107,585.40 : x
  2. Step 2: Convert to fraction form
    111,886.20/167,829.30 = 107,585.40/x
  3. Step 3: Cross multiply
    111,886.20x = 167,829.30 × 107,585.40
  4. Step 4: Simplify right side
    111,886.20x = 18,055,982,372.22
  5. Step 5: Solve for x
    x = 18,055,982,372.22/111,886.20
  6. Step 6: Final answer
    x = 161,378.10

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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.