Home / 135,025.44-186,350.94-81,337.56

Finding the Fourth Proportional to 135,025.44, 186,350.94 and 81,337.56

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Solution

The fourth proportional to 135,025.44, 186,350.94 and 81,337.56 is: 112,255.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,025.44 : 186,350.94 = 81,337.56 : x
  2. Step 2: Convert to fraction form
    135,025.44/186,350.94 = 81,337.56/x
  3. Step 3: Cross multiply
    135,025.44x = 186,350.94 × 81,337.56
  4. Step 4: Simplify right side
    135,025.44x = 15,157,330,763.31
  5. Step 5: Solve for x
    x = 15,157,330,763.31/135,025.44
  6. Step 6: Final answer
    x = 112,255.37

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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.