Finding the Fourth Proportional to 106,140.87, 146,413.58 and 66,327.75
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Solution
The fourth proportional to 106,140.87, 146,413.58 and 66,327.75 is: 91,494.28
Step by Step Solution
- Step 1: Write the proportion equation
106,140.87 : 146,413.58 = 66,327.75 : x - Step 2: Convert to fraction form
106,140.87/146,413.58 = 66,327.75/x - Step 3: Cross multiply
106,140.87x = 146,413.58 × 66,327.75 - Step 4: Simplify right side
106,140.87x = 9,711,282,999.21 - Step 5: Solve for x
x = 9,711,282,999.21/106,140.87 - Step 6: Final answer
x = 91,494.28
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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.