Finding the Fourth Proportional to 106,413.40, 159,620.10 and 97,427.80
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Solution
The fourth proportional to 106,413.40, 159,620.10 and 97,427.80 is: 146,141.70
Step by Step Solution
- Step 1: Write the proportion equation
106,413.40 : 159,620.10 = 97,427.80 : x - Step 2: Convert to fraction form
106,413.40/159,620.10 = 97,427.80/x - Step 3: Cross multiply
106,413.40x = 159,620.10 × 97,427.80 - Step 4: Simplify right side
106,413.40x = 15,551,435,178.78 - Step 5: Solve for x
x = 15,551,435,178.78/106,413.40 - Step 6: Final answer
x = 146,141.70
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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.