Finding the Fourth Proportional to 212,115.68, 292,712.16 and 116,621.64
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Solution
The fourth proportional to 212,115.68, 292,712.16 and 116,621.64 is: 160,933.75
Step by Step Solution
- Step 1: Write the proportion equation
212,115.68 : 292,712.16 = 116,621.64 : x - Step 2: Convert to fraction form
212,115.68/292,712.16 = 116,621.64/x - Step 3: Cross multiply
212,115.68x = 292,712.16 × 116,621.64 - Step 4: Simplify right side
212,115.68x = 34,136,572,805.31 - Step 5: Solve for x
x = 34,136,572,805.31/212,115.68 - Step 6: Final answer
x = 160,933.75
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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.