Finding the Fourth Proportional to 112,048.11, 154,689.68 and 74,373.87
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Solution
The fourth proportional to 112,048.11, 154,689.68 and 74,373.87 is: 102,677.95
Step by Step Solution
- Step 1: Write the proportion equation
112,048.11 : 154,689.68 = 74,373.87 : x - Step 2: Convert to fraction form
112,048.11/154,689.68 = 74,373.87/x - Step 3: Cross multiply
112,048.11x = 154,689.68 × 74,373.87 - Step 4: Simplify right side
112,048.11x = 11,504,869,778.79 - Step 5: Solve for x
x = 11,504,869,778.79/112,048.11 - Step 6: Final answer
x = 102,677.95
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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.