Home / 189,317.45-261,249.30-108,688.23

Finding the Fourth Proportional to 189,317.45, 261,249.30 and 108,688.23

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Solution

The fourth proportional to 189,317.45, 261,249.30 and 108,688.23 is: 149,984.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,317.45 : 261,249.30 = 108,688.23 : x
  2. Step 2: Convert to fraction form
    189,317.45/261,249.30 = 108,688.23/x
  3. Step 3: Cross multiply
    189,317.45x = 261,249.30 × 108,688.23
  4. Step 4: Simplify right side
    189,317.45x = 28,394,724,005.74
  5. Step 5: Solve for x
    x = 28,394,724,005.74/189,317.45
  6. Step 6: Final answer
    x = 149,984.71

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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.