Home / 142,579.45-196,808.82-82,174.22

Finding the Fourth Proportional to 142,579.45, 196,808.82 and 82,174.22

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Solution

The fourth proportional to 142,579.45, 196,808.82 and 82,174.22 is: 113,428.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,579.45 : 196,808.82 = 82,174.22 : x
  2. Step 2: Convert to fraction form
    142,579.45/196,808.82 = 82,174.22/x
  3. Step 3: Cross multiply
    142,579.45x = 196,808.82 × 82,174.22
  4. Step 4: Simplify right side
    142,579.45x = 16,172,611,272.62
  5. Step 5: Solve for x
    x = 16,172,611,272.62/142,579.45
  6. Step 6: Final answer
    x = 113,428.77

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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.