Finding the Fourth Proportional to 133,107.93, 183,689.84 and 72,678.99
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Solution
The fourth proportional to 133,107.93, 183,689.84 and 72,678.99 is: 100,297.50
Step by Step Solution
- Step 1: Write the proportion equation
133,107.93 : 183,689.84 = 72,678.99 : x - Step 2: Convert to fraction form
133,107.93/183,689.84 = 72,678.99/x - Step 3: Cross multiply
133,107.93x = 183,689.84 × 72,678.99 - Step 4: Simplify right side
133,107.93x = 13,350,392,642.45 - Step 5: Solve for x
x = 13,350,392,642.45/133,107.93 - Step 6: Final answer
x = 100,297.50
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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.