Home / 111,860.20-167,790.30-107,559.40

Finding the Fourth Proportional to 111,860.20, 167,790.30 and 107,559.40

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Solution

The fourth proportional to 111,860.20, 167,790.30 and 107,559.40 is: 161,339.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,860.20 : 167,790.30 = 107,559.40 : x
  2. Step 2: Convert to fraction form
    111,860.20/167,790.30 = 107,559.40/x
  3. Step 3: Cross multiply
    111,860.20x = 167,790.30 × 107,559.40
  4. Step 4: Simplify right side
    111,860.20x = 18,047,423,993.82
  5. Step 5: Solve for x
    x = 18,047,423,993.82/111,860.20
  6. Step 6: Final answer
    x = 161,339.10

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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.