Finding the Fourth Proportional to 112,716.84, 155,553.93 and 62,415.84
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Solution
The fourth proportional to 112,716.84, 155,553.93 and 62,415.84 is: 86,136.46
Step by Step Solution
- Step 1: Write the proportion equation
112,716.84 : 155,553.93 = 62,415.84 : x - Step 2: Convert to fraction form
112,716.84/155,553.93 = 62,415.84/x - Step 3: Cross multiply
112,716.84x = 155,553.93 × 62,415.84 - Step 4: Simplify right side
112,716.84x = 9,709,029,206.25 - Step 5: Solve for x
x = 9,709,029,206.25/112,716.84 - Step 6: Final answer
x = 86,136.46
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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.