Finding the Fourth Proportional to 139,368.09, 209,052.99 and 34,186.98
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Solution
The fourth proportional to 139,368.09, 209,052.99 and 34,186.98 is: 51,280.68
Step by Step Solution
- Step 1: Write the proportion equation
139,368.09 : 209,052.99 = 34,186.98 : x - Step 2: Convert to fraction form
139,368.09/209,052.99 = 34,186.98/x - Step 3: Cross multiply
139,368.09x = 209,052.99 × 34,186.98 - Step 4: Simplify right side
139,368.09x = 7,146,890,388.07 - Step 5: Solve for x
x = 7,146,890,388.07/139,368.09 - Step 6: Final answer
x = 51,280.68
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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.