Finding the Fourth Proportional to 117,329.06, 161,902.10 and 72,008.96
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Solution
The fourth proportional to 117,329.06, 161,902.10 and 72,008.96 is: 99,364.99
Step by Step Solution
- Step 1: Write the proportion equation
117,329.06 : 161,902.10 = 72,008.96 : x - Step 2: Convert to fraction form
117,329.06/161,902.10 = 72,008.96/x - Step 3: Cross multiply
117,329.06x = 161,902.10 × 72,008.96 - Step 4: Simplify right side
117,329.06x = 11,658,400,673.26 - Step 5: Solve for x
x = 11,658,400,673.26/117,329.06 - Step 6: Final answer
x = 99,364.99
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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.