Home / 139,114.64-191,914.44-82,505.36

Finding the Fourth Proportional to 139,114.64, 191,914.44 and 82,505.36

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Solution

The fourth proportional to 139,114.64, 191,914.44 and 82,505.36 is: 113,819.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,114.64 : 191,914.44 = 82,505.36 : x
  2. Step 2: Convert to fraction form
    139,114.64/191,914.44 = 82,505.36/x
  3. Step 3: Cross multiply
    139,114.64x = 191,914.44 × 82,505.36
  4. Step 4: Simplify right side
    139,114.64x = 15,833,969,961.40
  5. Step 5: Solve for x
    x = 15,833,969,961.40/139,114.64
  6. Step 6: Final answer
    x = 113,819.58

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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.