Finding the Fourth Proportional to 132,146.90, 182,364.06 and 71,718.08
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Solution
The fourth proportional to 132,146.90, 182,364.06 and 71,718.08 is: 98,971.68
Step by Step Solution
- Step 1: Write the proportion equation
132,146.90 : 182,364.06 = 71,718.08 : x - Step 2: Convert to fraction form
132,146.90/182,364.06 = 71,718.08/x - Step 3: Cross multiply
132,146.90x = 182,364.06 × 71,718.08 - Step 4: Simplify right side
132,146.90x = 13,078,800,244.20 - Step 5: Solve for x
x = 13,078,800,244.20/132,146.90 - Step 6: Final answer
x = 98,971.68
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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.