Finding the Fourth Proportional to 156,608.05, 216,119.26 and 84,988.08
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Solution
The fourth proportional to 156,608.05, 216,119.26 and 84,988.08 is: 117,283.63
Step by Step Solution
- Step 1: Write the proportion equation
156,608.05 : 216,119.26 = 84,988.08 : x - Step 2: Convert to fraction form
156,608.05/216,119.26 = 84,988.08/x - Step 3: Cross multiply
156,608.05x = 216,119.26 × 84,988.08 - Step 4: Simplify right side
156,608.05x = 18,367,560,958.42 - Step 5: Solve for x
x = 18,367,560,958.42/156,608.05 - Step 6: Final answer
x = 117,283.63
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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.