Finding the Fourth Proportional to 127,876.08, 176,478.62 and 74,160.66
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Solution
The fourth proportional to 127,876.08, 176,478.62 and 74,160.66 is: 102,347.30
Step by Step Solution
- Step 1: Write the proportion equation
127,876.08 : 176,478.62 = 74,160.66 : x - Step 2: Convert to fraction form
127,876.08/176,478.62 = 74,160.66/x - Step 3: Cross multiply
127,876.08x = 176,478.62 × 74,160.66 - Step 4: Simplify right side
127,876.08x = 13,087,770,935.09 - Step 5: Solve for x
x = 13,087,770,935.09/127,876.08 - Step 6: Final answer
x = 102,347.30
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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.