Finding the Fourth Proportional to 122,089.74, 168,475.82 and 68,362.44
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Solution
The fourth proportional to 122,089.74, 168,475.82 and 68,362.44 is: 94,335.68
Step by Step Solution
- Step 1: Write the proportion equation
122,089.74 : 168,475.82 = 68,362.44 : x - Step 2: Convert to fraction form
122,089.74/168,475.82 = 68,362.44/x - Step 3: Cross multiply
122,089.74x = 168,475.82 × 68,362.44 - Step 4: Simplify right side
122,089.74x = 11,517,418,136.20 - Step 5: Solve for x
x = 11,517,418,136.20/122,089.74 - Step 6: Final answer
x = 94,335.68
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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.