Finding the Fourth Proportional to 121,638.34, 182,203.26 and 97,817.05
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Solution
The fourth proportional to 121,638.34, 182,203.26 and 97,817.05 is: 146,521.12
Step by Step Solution
- Step 1: Write the proportion equation
121,638.34 : 182,203.26 = 97,817.05 : x - Step 2: Convert to fraction form
121,638.34/182,203.26 = 97,817.05/x - Step 3: Cross multiply
121,638.34x = 182,203.26 × 97,817.05 - Step 4: Simplify right side
121,638.34x = 17,822,585,393.58 - Step 5: Solve for x
x = 17,822,585,393.58/121,638.34 - Step 6: Final answer
x = 146,521.12
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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.