Finding the Fourth Proportional to 135,048.05, 186,376.71 and 74,623.87
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Solution
The fourth proportional to 135,048.05, 186,376.71 and 74,623.87 is: 102,986.69
Step by Step Solution
- Step 1: Write the proportion equation
135,048.05 : 186,376.71 = 74,623.87 : x - Step 2: Convert to fraction form
135,048.05/186,376.71 = 74,623.87/x - Step 3: Cross multiply
135,048.05x = 186,376.71 × 74,623.87 - Step 4: Simplify right side
135,048.05x = 13,908,151,378.07 - Step 5: Solve for x
x = 13,908,151,378.07/135,048.05 - Step 6: Final answer
x = 102,986.69
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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.