Home / 142,568.36-196,788.16-82,179.37

Finding the Fourth Proportional to 142,568.36, 196,788.16 and 82,179.37

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Solution

The fourth proportional to 142,568.36, 196,788.16 and 82,179.37 is: 113,432.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,568.36 : 196,788.16 = 82,179.37 : x
  2. Step 2: Convert to fraction form
    142,568.36/196,788.16 = 82,179.37/x
  3. Step 3: Cross multiply
    142,568.36x = 196,788.16 × 82,179.37
  4. Step 4: Simplify right side
    142,568.36x = 16,171,927,012.26
  5. Step 5: Solve for x
    x = 16,171,927,012.26/142,568.36
  6. Step 6: Final answer
    x = 113,432.79

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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.