Home / 149,255.89-205,622.82-103,855.79

Finding the Fourth Proportional to 149,255.89, 205,622.82 and 103,855.79

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Solution

The fourth proportional to 149,255.89, 205,622.82 and 103,855.79 is: 143,077.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,255.89 : 205,622.82 = 103,855.79 : x
  2. Step 2: Convert to fraction form
    149,255.89/205,622.82 = 103,855.79/x
  3. Step 3: Cross multiply
    149,255.89x = 205,622.82 × 103,855.79
  4. Step 4: Simplify right side
    149,255.89x = 21,355,120,413.13
  5. Step 5: Solve for x
    x = 21,355,120,413.13/149,255.89
  6. Step 6: Final answer
    x = 143,077.24

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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.