Home / 143,310.62-197,763.80-79,647.05

Finding the Fourth Proportional to 143,310.62, 197,763.80 and 79,647.05

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Solution

The fourth proportional to 143,310.62, 197,763.80 and 79,647.05 is: 109,910.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,310.62 : 197,763.80 = 79,647.05 : x
  2. Step 2: Convert to fraction form
    143,310.62/197,763.80 = 79,647.05/x
  3. Step 3: Cross multiply
    143,310.62x = 197,763.80 × 79,647.05
  4. Step 4: Simplify right side
    143,310.62x = 15,751,301,879.74
  5. Step 5: Solve for x
    x = 15,751,301,879.74/143,310.62
  6. Step 6: Final answer
    x = 109,910.22

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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.