Finding the Fourth Proportional to 192,726.68, 289,068.12 and 74,387.84
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Solution
The fourth proportional to 192,726.68, 289,068.12 and 74,387.84 is: 111,573.31
Step by Step Solution
- Step 1: Write the proportion equation
192,726.68 : 289,068.12 = 74,387.84 : x - Step 2: Convert to fraction form
192,726.68/289,068.12 = 74,387.84/x - Step 3: Cross multiply
192,726.68x = 289,068.12 × 74,387.84 - Step 4: Simplify right side
192,726.68x = 21,503,153,059.66 - Step 5: Solve for x
x = 21,503,153,059.66/192,726.68 - Step 6: Final answer
x = 111,573.31
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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.