Home / 141,769.69-195,642.06-78,107.49

Finding the Fourth Proportional to 141,769.69, 195,642.06 and 78,107.49

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Solution

The fourth proportional to 141,769.69, 195,642.06 and 78,107.49 is: 107,788.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,769.69 : 195,642.06 = 78,107.49 : x
  2. Step 2: Convert to fraction form
    141,769.69/195,642.06 = 78,107.49/x
  3. Step 3: Cross multiply
    141,769.69x = 195,642.06 × 78,107.49
  4. Step 4: Simplify right side
    141,769.69x = 15,281,110,171.80
  5. Step 5: Solve for x
    x = 15,281,110,171.80/141,769.69
  6. Step 6: Final answer
    x = 107,788.27

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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.