Finding the Fourth Proportional to 135,991.54, 203,981.08 and 47,251.99
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Solution
The fourth proportional to 135,991.54, 203,981.08 and 47,251.99 is: 70,875.82
Step by Step Solution
- Step 1: Write the proportion equation
135,991.54 : 203,981.08 = 47,251.99 : x - Step 2: Convert to fraction form
135,991.54/203,981.08 = 47,251.99/x - Step 3: Cross multiply
135,991.54x = 203,981.08 × 47,251.99 - Step 4: Simplify right side
135,991.54x = 9,638,511,952.35 - Step 5: Solve for x
x = 9,638,511,952.35/135,991.54 - Step 6: Final answer
x = 70,875.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.