Finding the Fourth Proportional to 135,363.29, 186,799.10 and 74,932.65
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Solution
The fourth proportional to 135,363.29, 186,799.10 and 74,932.65 is: 103,405.82
Step by Step Solution
- Step 1: Write the proportion equation
135,363.29 : 186,799.10 = 74,932.65 : x - Step 2: Convert to fraction form
135,363.29/186,799.10 = 74,932.65/x - Step 3: Cross multiply
135,363.29x = 186,799.10 × 74,932.65 - Step 4: Simplify right side
135,363.29x = 13,997,351,205.95 - Step 5: Solve for x
x = 13,997,351,205.95/135,363.29 - Step 6: Final answer
x = 103,405.82
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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.