Finding the Fourth Proportional to 124,714.20, 172,102.80 and 68,125.80
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Solution
The fourth proportional to 124,714.20, 172,102.80 and 68,125.80 is: 94,012.08
Step by Step Solution
- Step 1: Write the proportion equation
124,714.20 : 172,102.80 = 68,125.80 : x - Step 2: Convert to fraction form
124,714.20/172,102.80 = 68,125.80/x - Step 3: Cross multiply
124,714.20x = 172,102.80 × 68,125.80 - Step 4: Simplify right side
124,714.20x = 11,724,640,932.24 - Step 5: Solve for x
x = 11,724,640,932.24/124,714.20 - Step 6: Final answer
x = 94,012.08
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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.