Finding the Fourth Proportional to 121,439.80, 182,159.70 and 93,413.80
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Solution
The fourth proportional to 121,439.80, 182,159.70 and 93,413.80 is: 140,120.70
Step by Step Solution
- Step 1: Write the proportion equation
121,439.80 : 182,159.70 = 93,413.80 : x - Step 2: Convert to fraction form
121,439.80/182,159.70 = 93,413.80/x - Step 3: Cross multiply
121,439.80x = 182,159.70 × 93,413.80 - Step 4: Simplify right side
121,439.80x = 17,016,229,783.86 - Step 5: Solve for x
x = 17,016,229,783.86/121,439.80 - Step 6: Final answer
x = 140,120.70
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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.