Finding the Fourth Proportional to 168,196.64, 232,113.20 and 91,715.09
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Solution
The fourth proportional to 168,196.64, 232,113.20 and 91,715.09 is: 126,567.82
Step by Step Solution
- Step 1: Write the proportion equation
168,196.64 : 232,113.20 = 91,715.09 : x - Step 2: Convert to fraction form
168,196.64/232,113.20 = 91,715.09/x - Step 3: Cross multiply
168,196.64x = 232,113.20 × 91,715.09 - Step 4: Simplify right side
168,196.64x = 21,288,281,409.05 - Step 5: Solve for x
x = 21,288,281,409.05/168,196.64 - Step 6: Final answer
x = 126,567.82
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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.