Home / 189,636.39-261,687.38-113,241.69

Finding the Fourth Proportional to 189,636.39, 261,687.38 and 113,241.69

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Solution

The fourth proportional to 189,636.39, 261,687.38 and 113,241.69 is: 156,267.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,636.39 : 261,687.38 = 113,241.69 : x
  2. Step 2: Convert to fraction form
    189,636.39/261,687.38 = 113,241.69/x
  3. Step 3: Cross multiply
    189,636.39x = 261,687.38 × 113,241.69
  4. Step 4: Simplify right side
    189,636.39x = 29,633,920,596.66
  5. Step 5: Solve for x
    x = 29,633,920,596.66/189,636.39
  6. Step 6: Final answer
    x = 156,267.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.