Home / 141,666.05-195,491.72-77,991.54

Finding the Fourth Proportional to 141,666.05, 195,491.72 and 77,991.54

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Solution

The fourth proportional to 141,666.05, 195,491.72 and 77,991.54 is: 107,624.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,666.05 : 195,491.72 = 77,991.54 : x
  2. Step 2: Convert to fraction form
    141,666.05/195,491.72 = 77,991.54/x
  3. Step 3: Cross multiply
    141,666.05x = 195,491.72 × 77,991.54
  4. Step 4: Simplify right side
    141,666.05x = 15,246,699,910.09
  5. Step 5: Solve for x
    x = 15,246,699,910.09/141,666.05
  6. Step 6: Final answer
    x = 107,624.24

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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.