Finding the Fourth Proportional to 135,333.99, 186,734.97 and 74,901.78
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Solution
The fourth proportional to 135,333.99, 186,734.97 and 74,901.78 is: 103,350.10
Step by Step Solution
- Step 1: Write the proportion equation
135,333.99 : 186,734.97 = 74,901.78 : x - Step 2: Convert to fraction form
135,333.99/186,734.97 = 74,901.78/x - Step 3: Cross multiply
135,333.99x = 186,734.97 × 74,901.78 - Step 4: Simplify right side
135,333.99x = 13,986,781,641.25 - Step 5: Solve for x
x = 13,986,781,641.25/135,333.99 - Step 6: Final answer
x = 103,350.10
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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.