Finding the Fourth Proportional to 121,124.79, 181,687.26 and 54,487.08
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Solution
The fourth proportional to 121,124.79, 181,687.26 and 54,487.08 is: 81,730.65
Step by Step Solution
- Step 1: Write the proportion equation
121,124.79 : 181,687.26 = 54,487.08 : x - Step 2: Convert to fraction form
121,124.79/181,687.26 = 54,487.08/x - Step 3: Cross multiply
121,124.79x = 181,687.26 × 54,487.08 - Step 4: Simplify right side
121,124.79x = 9,899,608,270.60 - Step 5: Solve for x
x = 9,899,608,270.60/121,124.79 - Step 6: Final answer
x = 81,730.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.