Finding the Fourth Proportional to 112,243.55, 154,891.28 and 61,254.99
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Solution
The fourth proportional to 112,243.55, 154,891.28 and 61,254.99 is: 84,529.26
Step by Step Solution
- Step 1: Write the proportion equation
112,243.55 : 154,891.28 = 61,254.99 : x - Step 2: Convert to fraction form
112,243.55/154,891.28 = 61,254.99/x - Step 3: Cross multiply
112,243.55x = 154,891.28 × 61,254.99 - Step 4: Simplify right side
112,243.55x = 9,487,863,501.21 - Step 5: Solve for x
x = 9,487,863,501.21/112,243.55 - Step 6: Final answer
x = 84,529.26
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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.