Finding the Fourth Proportional to 212,169.41, 292,835.37 and 121,586.09
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Solution
The fourth proportional to 212,169.41, 292,835.37 and 121,586.09 is: 167,812.64
Step by Step Solution
- Step 1: Write the proportion equation
212,169.41 : 292,835.37 = 121,586.09 : x - Step 2: Convert to fraction form
212,169.41/292,835.37 = 121,586.09/x - Step 3: Cross multiply
212,169.41x = 292,835.37 × 121,586.09 - Step 4: Simplify right side
212,169.41x = 35,604,708,893.02 - Step 5: Solve for x
x = 35,604,708,893.02/212,169.41 - Step 6: Final answer
x = 167,812.64
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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.