Finding the Fourth Proportional to 168,403.18, 232,395.27 and 91,921.97
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Solution
The fourth proportional to 168,403.18, 232,395.27 and 91,921.97 is: 126,851.71
Step by Step Solution
- Step 1: Write the proportion equation
168,403.18 : 232,395.27 = 91,921.97 : x - Step 2: Convert to fraction form
168,403.18/232,395.27 = 91,921.97/x - Step 3: Cross multiply
168,403.18x = 232,395.27 × 91,921.97 - Step 4: Simplify right side
168,403.18x = 21,362,231,037.08 - Step 5: Solve for x
x = 21,362,231,037.08/168,403.18 - Step 6: Final answer
x = 126,851.71
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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.