Finding the Fourth Proportional to 121,714.18, 167,968.99 and 68,005.10
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Solution
The fourth proportional to 121,714.18, 167,968.99 and 68,005.10 is: 93,848.96
Step by Step Solution
- Step 1: Write the proportion equation
121,714.18 : 167,968.99 = 68,005.10 : x - Step 2: Convert to fraction form
121,714.18/167,968.99 = 68,005.10/x - Step 3: Cross multiply
121,714.18x = 167,968.99 × 68,005.10 - Step 4: Simplify right side
121,714.18x = 11,422,748,466.78 - Step 5: Solve for x
x = 11,422,748,466.78/121,714.18 - Step 6: Final answer
x = 93,848.96
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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.