Finding the Fourth Proportional to 156,968.18, 235,447.05 and 68,221.79
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Solution
The fourth proportional to 156,968.18, 235,447.05 and 68,221.79 is: 102,330.42
Step by Step Solution
- Step 1: Write the proportion equation
156,968.18 : 235,447.05 = 68,221.79 : x - Step 2: Convert to fraction form
156,968.18/235,447.05 = 68,221.79/x - Step 3: Cross multiply
156,968.18x = 235,447.05 × 68,221.79 - Step 4: Simplify right side
156,968.18x = 16,062,619,201.22 - Step 5: Solve for x
x = 16,062,619,201.22/156,968.18 - Step 6: Final answer
x = 102,330.42
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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.