Finding the Fourth Proportional to 117,051.36, 161,378.37 and 74,594.40
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Solution
The fourth proportional to 117,051.36, 161,378.37 and 74,594.40 is: 102,843.08
Step by Step Solution
- Step 1: Write the proportion equation
117,051.36 : 161,378.37 = 74,594.40 : x - Step 2: Convert to fraction form
117,051.36/161,378.37 = 74,594.40/x - Step 3: Cross multiply
117,051.36x = 161,378.37 × 74,594.40 - Step 4: Simplify right side
117,051.36x = 12,037,922,683.13 - Step 5: Solve for x
x = 12,037,922,683.13/117,051.36 - Step 6: Final answer
x = 102,843.08
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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.