Finding the Fourth Proportional to 154,551.43, 213,252.10 and 90,865.99
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Solution
The fourth proportional to 154,551.43, 213,252.10 and 90,865.99 is: 125,378.09
Step by Step Solution
- Step 1: Write the proportion equation
154,551.43 : 213,252.10 = 90,865.99 : x - Step 2: Convert to fraction form
154,551.43/213,252.10 = 90,865.99/x - Step 3: Cross multiply
154,551.43x = 213,252.10 × 90,865.99 - Step 4: Simplify right side
154,551.43x = 19,377,363,186.08 - Step 5: Solve for x
x = 19,377,363,186.08/154,551.43 - Step 6: Final answer
x = 125,378.09
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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.