Finding the Fourth Proportional to 212,163.82, 292,781.73 and 116,668.87
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Solution
The fourth proportional to 212,163.82, 292,781.73 and 116,668.87 is: 161,000.65
Step by Step Solution
- Step 1: Write the proportion equation
212,163.82 : 292,781.73 = 116,668.87 : x - Step 2: Convert to fraction form
212,163.82/292,781.73 = 116,668.87/x - Step 3: Cross multiply
212,163.82x = 292,781.73 × 116,668.87 - Step 4: Simplify right side
212,163.82x = 34,158,513,595.75 - Step 5: Solve for x
x = 34,158,513,595.75/212,163.82 - Step 6: Final answer
x = 161,000.65
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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.