Finding the Fourth Proportional to 118,136.37, 163,028.39 and 69,740.49
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Solution
The fourth proportional to 118,136.37, 163,028.39 and 69,740.49 is: 96,241.99
Step by Step Solution
- Step 1: Write the proportion equation
118,136.37 : 163,028.39 = 69,740.49 : x - Step 2: Convert to fraction form
118,136.37/163,028.39 = 69,740.49/x - Step 3: Cross multiply
118,136.37x = 163,028.39 × 69,740.49 - Step 4: Simplify right side
118,136.37x = 11,369,679,802.51 - Step 5: Solve for x
x = 11,369,679,802.51/118,136.37 - Step 6: Final answer
x = 96,241.99
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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.