Home / 142,579.34-196,808.68-82,174.07

Finding the Fourth Proportional to 142,579.34, 196,808.68 and 82,174.07

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Solution

The fourth proportional to 142,579.34, 196,808.68 and 82,174.07 is: 113,428.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,579.34 : 196,808.68 = 82,174.07 : x
  2. Step 2: Convert to fraction form
    142,579.34/196,808.68 = 82,174.07/x
  3. Step 3: Cross multiply
    142,579.34x = 196,808.68 × 82,174.07
  4. Step 4: Simplify right side
    142,579.34x = 16,172,569,365.60
  5. Step 5: Solve for x
    x = 16,172,569,365.60/142,579.34
  6. Step 6: Final answer
    x = 113,428.56

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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.