Home / 120,622.43-181,216.37-113,805.90

Finding the Fourth Proportional to 120,622.43, 181,216.37 and 113,805.90

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Solution

The fourth proportional to 120,622.43, 181,216.37 and 113,805.90 is: 170,975.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,622.43 : 181,216.37 = 113,805.90 : x
  2. Step 2: Convert to fraction form
    120,622.43/181,216.37 = 113,805.90/x
  3. Step 3: Cross multiply
    120,622.43x = 181,216.37 × 113,805.90
  4. Step 4: Simplify right side
    120,622.43x = 20,623,491,609.74
  5. Step 5: Solve for x
    x = 20,623,491,609.74/120,622.43
  6. Step 6: Final answer
    x = 170,975.59

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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.