Finding the Fourth Proportional to 128,996.62, 193,569.66 and 54,110.08
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Solution
The fourth proportional to 128,996.62, 193,569.66 and 54,110.08 is: 81,196.47
Step by Step Solution
- Step 1: Write the proportion equation
128,996.62 : 193,569.66 = 54,110.08 : x - Step 2: Convert to fraction form
128,996.62/193,569.66 = 54,110.08/x - Step 3: Cross multiply
128,996.62x = 193,569.66 × 54,110.08 - Step 4: Simplify right side
128,996.62x = 10,474,069,788.17 - Step 5: Solve for x
x = 10,474,069,788.17/128,996.62 - Step 6: Final answer
x = 81,196.47
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.