Finding the Fourth Proportional to 122,403.26, 168,916.11 and 68,688.52
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Solution
The fourth proportional to 122,403.26, 168,916.11 and 68,688.52 is: 94,789.94
Step by Step Solution
- Step 1: Write the proportion equation
122,403.26 : 168,916.11 = 68,688.52 : x - Step 2: Convert to fraction form
122,403.26/168,916.11 = 68,688.52/x - Step 3: Cross multiply
122,403.26x = 168,916.11 × 68,688.52 - Step 4: Simplify right side
122,403.26x = 11,602,597,600.06 - Step 5: Solve for x
x = 11,602,597,600.06/122,403.26 - Step 6: Final answer
x = 94,789.94
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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.