Finding the Fourth Proportional to 113,928.21, 170,905.95 and 47,413.31
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Solution
The fourth proportional to 113,928.21, 170,905.95 and 47,413.31 is: 71,125.63
Step by Step Solution
- Step 1: Write the proportion equation
113,928.21 : 170,905.95 = 47,413.31 : x - Step 2: Convert to fraction form
113,928.21/170,905.95 = 47,413.31/x - Step 3: Cross multiply
113,928.21x = 170,905.95 × 47,413.31 - Step 4: Simplify right side
113,928.21x = 8,103,215,933.66 - Step 5: Solve for x
x = 8,103,215,933.66/113,928.21 - Step 6: Final answer
x = 71,125.63
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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.