Finding the Fourth Proportional to 121,714.08, 167,955.84 and 67,994.88
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Solution
The fourth proportional to 121,714.08, 167,955.84 and 67,994.88 is: 93,827.58
Step by Step Solution
- Step 1: Write the proportion equation
121,714.08 : 167,955.84 = 67,994.88 : x - Step 2: Convert to fraction form
121,714.08/167,955.84 = 67,994.88/x - Step 3: Cross multiply
121,714.08x = 167,955.84 × 67,994.88 - Step 4: Simplify right side
121,714.08x = 11,420,137,186.10 - Step 5: Solve for x
x = 11,420,137,186.10/121,714.08 - Step 6: Final answer
x = 93,827.58
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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.