Finding the Fourth Proportional to 134,612.92, 201,696.18 and 81,862.84
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Solution
The fourth proportional to 134,612.92, 201,696.18 and 81,862.84 is: 122,658.52
Step by Step Solution
- Step 1: Write the proportion equation
134,612.92 : 201,696.18 = 81,862.84 : x - Step 2: Convert to fraction form
134,612.92/201,696.18 = 81,862.84/x - Step 3: Cross multiply
134,612.92x = 201,696.18 × 81,862.84 - Step 4: Simplify right side
134,612.92x = 16,511,422,111.95 - Step 5: Solve for x
x = 16,511,422,111.95/134,612.92 - Step 6: Final answer
x = 122,658.52
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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.