Finding the Fourth Proportional to 135,901.13, 203,888.61 and 47,161.55
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Solution
The fourth proportional to 135,901.13, 203,888.61 and 47,161.55 is: 70,755.14
Step by Step Solution
- Step 1: Write the proportion equation
135,901.13 : 203,888.61 = 47,161.55 : x - Step 2: Convert to fraction form
135,901.13/203,888.61 = 47,161.55/x - Step 3: Cross multiply
135,901.13x = 203,888.61 × 47,161.55 - Step 4: Simplify right side
135,901.13x = 9,615,703,384.67 - Step 5: Solve for x
x = 9,615,703,384.67/135,901.13 - Step 6: Final answer
x = 70,755.14
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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.