Home / 107,668.29-148,428.20-75,738.09

Finding the Fourth Proportional to 107,668.29, 148,428.20 and 75,738.09

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Solution

The fourth proportional to 107,668.29, 148,428.20 and 75,738.09 is: 104,410.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,668.29 : 148,428.20 = 75,738.09 : x
  2. Step 2: Convert to fraction form
    107,668.29/148,428.20 = 75,738.09/x
  3. Step 3: Cross multiply
    107,668.29x = 148,428.20 × 75,738.09
  4. Step 4: Simplify right side
    107,668.29x = 11,241,667,855.15
  5. Step 5: Solve for x
    x = 11,241,667,855.15/107,668.29
  6. Step 6: Final answer
    x = 104,410.20

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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.