Finding the Fourth Proportional to 115,476.64, 172,988.97 and 102,937.84
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Solution
The fourth proportional to 115,476.64, 172,988.97 and 102,937.84 is: 154,205.30
Step by Step Solution
- Step 1: Write the proportion equation
115,476.64 : 172,988.97 = 102,937.84 : x - Step 2: Convert to fraction form
115,476.64/172,988.97 = 102,937.84/x - Step 3: Cross multiply
115,476.64x = 172,988.97 × 102,937.84 - Step 4: Simplify right side
115,476.64x = 17,807,110,097.14 - Step 5: Solve for x
x = 17,807,110,097.14/115,476.64 - Step 6: Final answer
x = 154,205.30
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.