Finding the Fourth Proportional to 107,291.49, 160,918.99 and 28,413.69
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Solution
The fourth proportional to 107,291.49, 160,918.99 and 28,413.69 is: 42,615.70
Step by Step Solution
- Step 1: Write the proportion equation
107,291.49 : 160,918.99 = 28,413.69 : x - Step 2: Convert to fraction form
107,291.49/160,918.99 = 28,413.69/x - Step 3: Cross multiply
107,291.49x = 160,918.99 × 28,413.69 - Step 4: Simplify right side
107,291.49x = 4,572,301,622.49 - Step 5: Solve for x
x = 4,572,301,622.49/107,291.49 - Step 6: Final answer
x = 42,615.70
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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.