Home / 103,949.42-143,450.07-56,202.65

Finding the Fourth Proportional to 103,949.42, 143,450.07 and 56,202.65

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Solution

The fourth proportional to 103,949.42, 143,450.07 and 56,202.65 is: 77,559.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,949.42 : 143,450.07 = 56,202.65 : x
  2. Step 2: Convert to fraction form
    103,949.42/143,450.07 = 56,202.65/x
  3. Step 3: Cross multiply
    103,949.42x = 143,450.07 × 56,202.65
  4. Step 4: Simplify right side
    103,949.42x = 8,062,274,076.69
  5. Step 5: Solve for x
    x = 8,062,274,076.69/103,949.42
  6. Step 6: Final answer
    x = 77,559.59

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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.