Finding the Fourth Proportional to 131,886.96, 182,004.12 and 72,270.96
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Solution
The fourth proportional to 131,886.96, 182,004.12 and 72,270.96 is: 99,733.99
Step by Step Solution
- Step 1: Write the proportion equation
131,886.96 : 182,004.12 = 72,270.96 : x - Step 2: Convert to fraction form
131,886.96/182,004.12 = 72,270.96/x - Step 3: Cross multiply
131,886.96x = 182,004.12 × 72,270.96 - Step 4: Simplify right side
131,886.96x = 13,153,612,476.36 - Step 5: Solve for x
x = 13,153,612,476.36/131,886.96 - Step 6: Final answer
x = 99,733.99
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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.