Finding the Fourth Proportional to 135,013.71, 186,319.28 and 74,583.15
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Solution
The fourth proportional to 135,013.71, 186,319.28 and 74,583.15 is: 102,924.94
Step by Step Solution
- Step 1: Write the proportion equation
135,013.71 : 186,319.28 = 74,583.15 : x - Step 2: Convert to fraction form
135,013.71/186,319.28 = 74,583.15/x - Step 3: Cross multiply
135,013.71x = 186,319.28 × 74,583.15 - Step 4: Simplify right side
135,013.71x = 13,896,278,435.22 - Step 5: Solve for x
x = 13,896,278,435.22/135,013.71 - Step 6: Final answer
x = 102,924.94
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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.