Finding the Fourth Proportional to 122,950.62, 169,679.67 and 74,557.17
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Solution
The fourth proportional to 122,950.62, 169,679.67 and 74,557.17 is: 102,893.63
Step by Step Solution
- Step 1: Write the proportion equation
122,950.62 : 169,679.67 = 74,557.17 : x - Step 2: Convert to fraction form
122,950.62/169,679.67 = 74,557.17/x - Step 3: Cross multiply
122,950.62x = 169,679.67 × 74,557.17 - Step 4: Simplify right side
122,950.62x = 12,650,836,001.73 - Step 5: Solve for x
x = 12,650,836,001.73/122,950.62 - Step 6: Final answer
x = 102,893.63
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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.