Home / 105,413.56-158,135.96-30,524.35

Finding the Fourth Proportional to 105,413.56, 158,135.96 and 30,524.35

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Solution

The fourth proportional to 105,413.56, 158,135.96 and 30,524.35 is: 45,791.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,413.56 : 158,135.96 = 30,524.35 : x
  2. Step 2: Convert to fraction form
    105,413.56/158,135.96 = 30,524.35/x
  3. Step 3: Cross multiply
    105,413.56x = 158,135.96 × 30,524.35
  4. Step 4: Simplify right side
    105,413.56x = 4,826,997,390.63
  5. Step 5: Solve for x
    x = 4,826,997,390.63/105,413.56
  6. Step 6: Final answer
    x = 45,791.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.