Finding the Fourth Proportional to 151,951.68, 209,689.56 and 83,965.14
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Solution
The fourth proportional to 151,951.68, 209,689.56 and 83,965.14 is: 115,869.82
Step by Step Solution
- Step 1: Write the proportion equation
151,951.68 : 209,689.56 = 83,965.14 : x - Step 2: Convert to fraction form
151,951.68/209,689.56 = 83,965.14/x - Step 3: Cross multiply
151,951.68x = 209,689.56 × 83,965.14 - Step 4: Simplify right side
151,951.68x = 17,606,613,261.94 - Step 5: Solve for x
x = 17,606,613,261.94/151,951.68 - Step 6: Final answer
x = 115,869.82
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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.