Finding the Fourth Proportional to 121,445.80, 182,168.70 and 93,419.80
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Solution
The fourth proportional to 121,445.80, 182,168.70 and 93,419.80 is: 140,129.70
Step by Step Solution
- Step 1: Write the proportion equation
121,445.80 : 182,168.70 = 93,419.80 : x - Step 2: Convert to fraction form
121,445.80/182,168.70 = 93,419.80/x - Step 3: Cross multiply
121,445.80x = 182,168.70 × 93,419.80 - Step 4: Simplify right side
121,445.80x = 17,018,163,520.26 - Step 5: Solve for x
x = 17,018,163,520.26/121,445.80 - Step 6: Final answer
x = 140,129.70
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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.