Finding the Fourth Proportional to 135,006.61, 186,305.51 and 74,575.95
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Solution
The fourth proportional to 135,006.61, 186,305.51 and 74,575.95 is: 102,912.82
Step by Step Solution
- Step 1: Write the proportion equation
135,006.61 : 186,305.51 = 74,575.95 : x - Step 2: Convert to fraction form
135,006.61/186,305.51 = 74,575.95/x - Step 3: Cross multiply
135,006.61x = 186,305.51 × 74,575.95 - Step 4: Simplify right side
135,006.61x = 13,893,911,283.57 - Step 5: Solve for x
x = 13,893,911,283.57/135,006.61 - Step 6: Final answer
x = 102,912.82
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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.