Finding the Fourth Proportional to 138,264.26, 190,805.97 and 77,823.17
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Solution
The fourth proportional to 138,264.26, 190,805.97 and 77,823.17 is: 107,396.70
Step by Step Solution
- Step 1: Write the proportion equation
138,264.26 : 190,805.97 = 77,823.17 : x - Step 2: Convert to fraction form
138,264.26/190,805.97 = 77,823.17/x - Step 3: Cross multiply
138,264.26x = 190,805.97 × 77,823.17 - Step 4: Simplify right side
138,264.26x = 14,849,124,486.30 - Step 5: Solve for x
x = 14,849,124,486.30/138,264.26 - Step 6: Final answer
x = 107,396.70
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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.