Finding the Fourth Proportional to 121,405.40, 182,108.10 and 120,627.80
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Solution
The fourth proportional to 121,405.40, 182,108.10 and 120,627.80 is: 180,941.70
Step by Step Solution
- Step 1: Write the proportion equation
121,405.40 : 182,108.10 = 120,627.80 : x - Step 2: Convert to fraction form
121,405.40/182,108.10 = 120,627.80/x - Step 3: Cross multiply
121,405.40x = 182,108.10 × 120,627.80 - Step 4: Simplify right side
121,405.40x = 21,967,299,465.18 - Step 5: Solve for x
x = 21,967,299,465.18/121,405.40 - Step 6: Final answer
x = 180,941.70
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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.