Home / 143,429.22-197,933.49-79,765.65

Finding the Fourth Proportional to 143,429.22, 197,933.49 and 79,765.65

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Solution

The fourth proportional to 143,429.22, 197,933.49 and 79,765.65 is: 110,077.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,429.22 : 197,933.49 = 79,765.65 : x
  2. Step 2: Convert to fraction form
    143,429.22/197,933.49 = 79,765.65/x
  3. Step 3: Cross multiply
    143,429.22x = 197,933.49 × 79,765.65
  4. Step 4: Simplify right side
    143,429.22x = 15,788,293,486.62
  5. Step 5: Solve for x
    x = 15,788,293,486.62/143,429.22
  6. Step 6: Final answer
    x = 110,077.25

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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.