Finding the Fourth Proportional to 121,956.71, 182,935.06 and 80,393.99
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Solution
The fourth proportional to 121,956.71, 182,935.06 and 80,393.99 is: 120,590.98
Step by Step Solution
- Step 1: Write the proportion equation
121,956.71 : 182,935.06 = 80,393.99 : x - Step 2: Convert to fraction form
121,956.71/182,935.06 = 80,393.99/x - Step 3: Cross multiply
121,956.71x = 182,935.06 × 80,393.99 - Step 4: Simplify right side
121,956.71x = 14,706,878,268.63 - Step 5: Solve for x
x = 14,706,878,268.63/121,956.71 - Step 6: Final answer
x = 120,590.98
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.