Home / 135,308.20-186,800.38-81,606.76

Finding the Fourth Proportional to 135,308.20, 186,800.38 and 81,606.76

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Solution

The fourth proportional to 135,308.20, 186,800.38 and 81,606.76 is: 112,662.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,308.20 : 186,800.38 = 81,606.76 : x
  2. Step 2: Convert to fraction form
    135,308.20/186,800.38 = 81,606.76/x
  3. Step 3: Cross multiply
    135,308.20x = 186,800.38 × 81,606.76
  4. Step 4: Simplify right side
    135,308.20x = 15,244,173,778.57
  5. Step 5: Solve for x
    x = 15,244,173,778.57/135,308.20
  6. Step 6: Final answer
    x = 112,662.60

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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.