Finding the Fourth Proportional to 131,917.26, 182,054.85 and 74,536.74
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Solution
The fourth proportional to 131,917.26, 182,054.85 and 74,536.74 is: 102,865.80
Step by Step Solution
- Step 1: Write the proportion equation
131,917.26 : 182,054.85 = 74,536.74 : x - Step 2: Convert to fraction form
131,917.26/182,054.85 = 74,536.74/x - Step 3: Cross multiply
131,917.26x = 182,054.85 × 74,536.74 - Step 4: Simplify right side
131,917.26x = 13,569,775,020.19 - Step 5: Solve for x
x = 13,569,775,020.19/131,917.26 - Step 6: Final answer
x = 102,865.80
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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.