Finding the Fourth Proportional to 155,734.83, 214,916.09 and 92,072.07
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Solution
The fourth proportional to 155,734.83, 214,916.09 and 92,072.07 is: 127,060.65
Step by Step Solution
- Step 1: Write the proportion equation
155,734.83 : 214,916.09 = 92,072.07 : x - Step 2: Convert to fraction form
155,734.83/214,916.09 = 92,072.07/x - Step 3: Cross multiply
155,734.83x = 214,916.09 × 92,072.07 - Step 4: Simplify right side
155,734.83x = 19,787,768,822.25 - Step 5: Solve for x
x = 19,787,768,822.25/155,734.83 - Step 6: Final answer
x = 127,060.65
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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.