Finding the Fourth Proportional to 122,764.19, 169,413.93 and 69,048.05
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Solution
The fourth proportional to 122,764.19, 169,413.93 and 69,048.05 is: 95,285.94
Step by Step Solution
- Step 1: Write the proportion equation
122,764.19 : 169,413.93 = 69,048.05 : x - Step 2: Convert to fraction form
122,764.19/169,413.93 = 69,048.05/x - Step 3: Cross multiply
122,764.19x = 169,413.93 × 69,048.05 - Step 4: Simplify right side
122,764.19x = 11,697,700,662.27 - Step 5: Solve for x
x = 11,697,700,662.27/122,764.19 - Step 6: Final answer
x = 95,285.94
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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.