Home / 113,388.89-156,467.09-66,814.37

Finding the Fourth Proportional to 113,388.89, 156,467.09 and 66,814.37

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Solution

The fourth proportional to 113,388.89, 156,467.09 and 66,814.37 is: 92,198.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,388.89 : 156,467.09 = 66,814.37 : x
  2. Step 2: Convert to fraction form
    113,388.89/156,467.09 = 66,814.37/x
  3. Step 3: Cross multiply
    113,388.89x = 156,467.09 × 66,814.37
  4. Step 4: Simplify right side
    113,388.89x = 10,454,250,015.54
  5. Step 5: Solve for x
    x = 10,454,250,015.54/113,388.89
  6. Step 6: Final answer
    x = 92,198.19

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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.