Finding the Fourth Proportional to 119,178.95, 164,472.12 and 68,207.68
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Solution
The fourth proportional to 119,178.95, 164,472.12 and 68,207.68 is: 94,129.56
Step by Step Solution
- Step 1: Write the proportion equation
119,178.95 : 164,472.12 = 68,207.68 : x - Step 2: Convert to fraction form
119,178.95/164,472.12 = 68,207.68/x - Step 3: Cross multiply
119,178.95x = 164,472.12 × 68,207.68 - Step 4: Simplify right side
119,178.95x = 11,218,261,729.88 - Step 5: Solve for x
x = 11,218,261,729.88/119,178.95 - Step 6: Final answer
x = 94,129.56
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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.