Home / 142,788.54-197,047.94-82,358.22

Finding the Fourth Proportional to 142,788.54, 197,047.94 and 82,358.22

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Solution

The fourth proportional to 142,788.54, 197,047.94 and 82,358.22 is: 113,654.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,788.54 : 197,047.94 = 82,358.22 : x
  2. Step 2: Convert to fraction form
    142,788.54/197,047.94 = 82,358.22/x
  3. Step 3: Cross multiply
    142,788.54x = 197,047.94 × 82,358.22
  4. Step 4: Simplify right side
    142,788.54x = 16,228,517,593.07
  5. Step 5: Solve for x
    x = 16,228,517,593.07/142,788.54
  6. Step 6: Final answer
    x = 113,654.20

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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.