Home / 142,074.03-195,976.98-103,786.74

Finding the Fourth Proportional to 142,074.03, 195,976.98 and 103,786.74

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Solution

The fourth proportional to 142,074.03, 195,976.98 and 103,786.74 is: 143,163.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,074.03 : 195,976.98 = 103,786.74 : x
  2. Step 2: Convert to fraction form
    142,074.03/195,976.98 = 103,786.74/x
  3. Step 3: Cross multiply
    142,074.03x = 195,976.98 × 103,786.74
  4. Step 4: Simplify right side
    142,074.03x = 20,339,811,869.25
  5. Step 5: Solve for x
    x = 20,339,811,869.25/142,074.03
  6. Step 6: Final answer
    x = 143,163.48

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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.