Finding the Fourth Proportional to 124,414.76, 171,638.21 and 79,068.44
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Solution
The fourth proportional to 124,414.76, 171,638.21 and 79,068.44 is: 109,080.02
Step by Step Solution
- Step 1: Write the proportion equation
124,414.76 : 171,638.21 = 79,068.44 : x - Step 2: Convert to fraction form
124,414.76/171,638.21 = 79,068.44/x - Step 3: Cross multiply
124,414.76x = 171,638.21 × 79,068.44 - Step 4: Simplify right side
124,414.76x = 13,571,164,255.56 - Step 5: Solve for x
x = 13,571,164,255.56/124,414.76 - Step 6: Final answer
x = 109,080.02
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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.