Finding the Fourth Proportional to 136,355.84, 188,121.12 and 82,602.08
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Solution
The fourth proportional to 136,355.84, 188,121.12 and 82,602.08 is: 113,960.62
Step by Step Solution
- Step 1: Write the proportion equation
136,355.84 : 188,121.12 = 82,602.08 : x - Step 2: Convert to fraction form
136,355.84/188,121.12 = 82,602.08/x - Step 3: Cross multiply
136,355.84x = 188,121.12 × 82,602.08 - Step 4: Simplify right side
136,355.84x = 15,539,195,803.93 - Step 5: Solve for x
x = 15,539,195,803.93/136,355.84 - Step 6: Final answer
x = 113,960.62
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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.