Finding the Fourth Proportional to 122,159.96, 168,569.33 and 68,433.58
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Solution
The fourth proportional to 122,159.96, 168,569.33 and 68,433.58 is: 94,431.95
Step by Step Solution
- Step 1: Write the proportion equation
122,159.96 : 168,569.33 = 68,433.58 : x - Step 2: Convert to fraction form
122,159.96/168,569.33 = 68,433.58/x - Step 3: Cross multiply
122,159.96x = 168,569.33 × 68,433.58 - Step 4: Simplify right side
122,159.96x = 11,535,802,730.10 - Step 5: Solve for x
x = 11,535,802,730.10/122,159.96 - Step 6: Final answer
x = 94,431.95
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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.