Finding the Fourth Proportional to 139,172.04, 208,765.62 and 39,340.08
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Solution
The fourth proportional to 139,172.04, 208,765.62 and 39,340.08 is: 59,012.26
Step by Step Solution
- Step 1: Write the proportion equation
139,172.04 : 208,765.62 = 39,340.08 : x - Step 2: Convert to fraction form
139,172.04/208,765.62 = 39,340.08/x - Step 3: Cross multiply
139,172.04x = 208,765.62 × 39,340.08 - Step 4: Simplify right side
139,172.04x = 8,212,856,192.05 - Step 5: Solve for x
x = 8,212,856,192.05/139,172.04 - Step 6: Final answer
x = 59,012.26
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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.