Home / 154,588.70-213,331.94-85,682.56

Finding the Fourth Proportional to 154,588.70, 213,331.94 and 85,682.56

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Solution

The fourth proportional to 154,588.70, 213,331.94 and 85,682.56 is: 118,241.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,588.70 : 213,331.94 = 85,682.56 : x
  2. Step 2: Convert to fraction form
    154,588.70/213,331.94 = 85,682.56/x
  3. Step 3: Cross multiply
    154,588.70x = 213,331.94 × 85,682.56
  4. Step 4: Simplify right side
    154,588.70x = 18,278,826,748.97
  5. Step 5: Solve for x
    x = 18,278,826,748.97/154,588.70
  6. Step 6: Final answer
    x = 118,241.67

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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.