Finding the Fourth Proportional to 122,446.18, 168,966.52 and 68,001.40
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Solution
The fourth proportional to 122,446.18, 168,966.52 and 68,001.40 is: 93,836.82
Step by Step Solution
- Step 1: Write the proportion equation
122,446.18 : 168,966.52 = 68,001.40 : x - Step 2: Convert to fraction form
122,446.18/168,966.52 = 68,001.40/x - Step 3: Cross multiply
122,446.18x = 168,966.52 × 68,001.40 - Step 4: Simplify right side
122,446.18x = 11,489,959,913.13 - Step 5: Solve for x
x = 11,489,959,913.13/122,446.18 - Step 6: Final answer
x = 93,836.82
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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.