Finding the Fourth Proportional to 159,864.84, 220,616.19 and 87,271.48
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Solution
The fourth proportional to 159,864.84, 220,616.19 and 87,271.48 is: 120,436.12
Step by Step Solution
- Step 1: Write the proportion equation
159,864.84 : 220,616.19 = 87,271.48 : x - Step 2: Convert to fraction form
159,864.84/220,616.19 = 87,271.48/x - Step 3: Cross multiply
159,864.84x = 220,616.19 × 87,271.48 - Step 4: Simplify right side
159,864.84x = 19,253,501,413.26 - Step 5: Solve for x
x = 19,253,501,413.26/159,864.84 - Step 6: Final answer
x = 120,436.12
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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.