Home / 106,379.39-146,757.03-76,153.68

Finding the Fourth Proportional to 106,379.39, 146,757.03 and 76,153.68

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Solution

The fourth proportional to 106,379.39, 146,757.03 and 76,153.68 is: 105,058.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,379.39 : 146,757.03 = 76,153.68 : x
  2. Step 2: Convert to fraction form
    106,379.39/146,757.03 = 76,153.68/x
  3. Step 3: Cross multiply
    106,379.39x = 146,757.03 × 76,153.68
  4. Step 4: Simplify right side
    106,379.39x = 11,176,087,900.37
  5. Step 5: Solve for x
    x = 11,176,087,900.37/106,379.39
  6. Step 6: Final answer
    x = 105,058.78

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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.