Finding the Fourth Proportional to 212,177.64, 292,799.60 and 126,136.79
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Solution
The fourth proportional to 212,177.64, 292,799.60 and 126,136.79 is: 174,065.46
Step by Step Solution
- Step 1: Write the proportion equation
212,177.64 : 292,799.60 = 126,136.79 : x - Step 2: Convert to fraction form
212,177.64/292,799.60 = 126,136.79/x - Step 3: Cross multiply
212,177.64x = 292,799.60 × 126,136.79 - Step 4: Simplify right side
212,177.64x = 36,932,799,562.60 - Step 5: Solve for x
x = 36,932,799,562.60/212,177.64 - Step 6: Final answer
x = 174,065.46
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1.5x scale
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.