Home / 103,739.52-143,163.36-58,413.96

Finding the Fourth Proportional to 103,739.52, 143,163.36 and 58,413.96

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Solution

The fourth proportional to 103,739.52, 143,163.36 and 58,413.96 is: 80,612.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,739.52 : 143,163.36 = 58,413.96 : x
  2. Step 2: Convert to fraction form
    103,739.52/143,163.36 = 58,413.96/x
  3. Step 3: Cross multiply
    103,739.52x = 143,163.36 × 58,413.96
  4. Step 4: Simplify right side
    103,739.52x = 8,362,738,784.51
  5. Step 5: Solve for x
    x = 8,362,738,784.51/103,739.52
  6. Step 6: Final answer
    x = 80,612.85

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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.