Finding the Fourth Proportional to 135,229.18, 186,614.66 and 74,795.08
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Solution
The fourth proportional to 135,229.18, 186,614.66 and 74,795.08 is: 103,216.32
Step by Step Solution
- Step 1: Write the proportion equation
135,229.18 : 186,614.66 = 74,795.08 : x - Step 2: Convert to fraction form
135,229.18/186,614.66 = 74,795.08/x - Step 3: Cross multiply
135,229.18x = 186,614.66 × 74,795.08 - Step 4: Simplify right side
135,229.18x = 13,957,858,423.87 - Step 5: Solve for x
x = 13,957,858,423.87/135,229.18 - Step 6: Final answer
x = 103,216.32
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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.