Finding the Fourth Proportional to 113,855.68, 170,710.40 and 47,342.08
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Solution
The fourth proportional to 113,855.68, 170,710.40 and 47,342.08 is: 70,982.72
Step by Step Solution
- Step 1: Write the proportion equation
113,855.68 : 170,710.40 = 47,342.08 : x - Step 2: Convert to fraction form
113,855.68/170,710.40 = 47,342.08/x - Step 3: Cross multiply
113,855.68x = 170,710.40 × 47,342.08 - Step 4: Simplify right side
113,855.68x = 8,081,785,413.63 - Step 5: Solve for x
x = 8,081,785,413.63/113,855.68 - Step 6: Final answer
x = 70,982.72
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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.