Home / 141,450.69-195,198.06-77,788.49

Finding the Fourth Proportional to 141,450.69, 195,198.06 and 77,788.49

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Solution

The fourth proportional to 141,450.69, 195,198.06 and 77,788.49 is: 107,345.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,450.69 : 195,198.06 = 77,788.49 : x
  2. Step 2: Convert to fraction form
    141,450.69/195,198.06 = 77,788.49/x
  3. Step 3: Cross multiply
    141,450.69x = 195,198.06 × 77,788.49
  4. Step 4: Simplify right side
    141,450.69x = 15,184,161,654.05
  5. Step 5: Solve for x
    x = 15,184,161,654.05/141,450.69
  6. Step 6: Final answer
    x = 107,345.97

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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.