Finding the Fourth Proportional to 151,972.58, 209,721.74 and 84,904.58
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Solution
The fourth proportional to 151,972.58, 209,721.74 and 84,904.58 is: 117,168.09
Step by Step Solution
- Step 1: Write the proportion equation
151,972.58 : 209,721.74 = 84,904.58 : x - Step 2: Convert to fraction form
151,972.58/209,721.74 = 84,904.58/x - Step 3: Cross multiply
151,972.58x = 209,721.74 × 84,904.58 - Step 4: Simplify right side
151,972.58x = 17,806,336,251.57 - Step 5: Solve for x
x = 17,806,336,251.57/151,972.58 - Step 6: Final answer
x = 117,168.09
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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.