Home / 145,614.11-200,914.22-81,928.67

Finding the Fourth Proportional to 145,614.11, 200,914.22 and 81,928.67

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Solution

The fourth proportional to 145,614.11, 200,914.22 and 81,928.67 is: 113,042.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,614.11 : 200,914.22 = 81,928.67 : x
  2. Step 2: Convert to fraction form
    145,614.11/200,914.22 = 81,928.67/x
  3. Step 3: Cross multiply
    145,614.11x = 200,914.22 × 81,928.67
  4. Step 4: Simplify right side
    145,614.11x = 16,460,633,414.47
  5. Step 5: Solve for x
    x = 16,460,633,414.47/145,614.11
  6. Step 6: Final answer
    x = 113,042.85

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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.