Finding the Fourth Proportional to 135,341.62, 186,745.49 and 74,909.41
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Solution
The fourth proportional to 135,341.62, 186,745.49 and 74,909.41 is: 103,360.63
Step by Step Solution
- Step 1: Write the proportion equation
135,341.62 : 186,745.49 = 74,909.41 : x - Step 2: Convert to fraction form
135,341.62/186,745.49 = 74,909.41/x - Step 3: Cross multiply
135,341.62x = 186,745.49 × 74,909.41 - Step 4: Simplify right side
135,341.62x = 13,988,994,476.06 - Step 5: Solve for x
x = 13,988,994,476.06/135,341.62 - Step 6: Final answer
x = 103,360.63
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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.