Finding the Fourth Proportional to 135,302.81, 186,715.08 and 74,873.41
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Solution
The fourth proportional to 135,302.81, 186,715.08 and 74,873.41 is: 103,323.76
Step by Step Solution
- Step 1: Write the proportion equation
135,302.81 : 186,715.08 = 74,873.41 : x - Step 2: Convert to fraction form
135,302.81/186,715.08 = 74,873.41/x - Step 3: Cross multiply
135,302.81x = 186,715.08 × 74,873.41 - Step 4: Simplify right side
135,302.81x = 13,979,994,738.02 - Step 5: Solve for x
x = 13,979,994,738.02/135,302.81 - Step 6: Final answer
x = 103,323.76
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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.