Finding the Fourth Proportional to 157,146.21, 216,852.39 and 88,230.60
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Solution
The fourth proportional to 157,146.21, 216,852.39 and 88,230.60 is: 121,752.96
Step by Step Solution
- Step 1: Write the proportion equation
157,146.21 : 216,852.39 = 88,230.60 : x - Step 2: Convert to fraction form
157,146.21/216,852.39 = 88,230.60/x - Step 3: Cross multiply
157,146.21x = 216,852.39 × 88,230.60 - Step 4: Simplify right side
157,146.21x = 19,133,016,481.13 - Step 5: Solve for x
x = 19,133,016,481.13/157,146.21 - Step 6: Final answer
x = 121,752.96
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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.