Finding the Fourth Proportional to 135,200.18, 186,582.08 and 74,770.84
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Solution
The fourth proportional to 135,200.18, 186,582.08 and 74,770.84 is: 103,186.99
Step by Step Solution
- Step 1: Write the proportion equation
135,200.18 : 186,582.08 = 74,770.84 : x - Step 2: Convert to fraction form
135,200.18/186,582.08 = 74,770.84/x - Step 3: Cross multiply
135,200.18x = 186,582.08 × 74,770.84 - Step 4: Simplify right side
135,200.18x = 13,950,899,270.70 - Step 5: Solve for x
x = 13,950,899,270.70/135,200.18 - Step 6: Final answer
x = 103,186.99
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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.