Home / 143,665.36-198,250.56-82,408.39

Finding the Fourth Proportional to 143,665.36, 198,250.56 and 82,408.39

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Solution

The fourth proportional to 143,665.36, 198,250.56 and 82,408.39 is: 113,719.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,665.36 : 198,250.56 = 82,408.39 : x
  2. Step 2: Convert to fraction form
    143,665.36/198,250.56 = 82,408.39/x
  3. Step 3: Cross multiply
    143,665.36x = 198,250.56 × 82,408.39
  4. Step 4: Simplify right side
    143,665.36x = 16,337,509,466.20
  5. Step 5: Solve for x
    x = 16,337,509,466.20/143,665.36
  6. Step 6: Final answer
    x = 113,719.20

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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.