Finding the Fourth Proportional to 135,917.67, 203,881.91 and 42,423.42
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Solution
The fourth proportional to 135,917.67, 203,881.91 and 42,423.42 is: 63,636.82
Step by Step Solution
- Step 1: Write the proportion equation
135,917.67 : 203,881.91 = 42,423.42 : x - Step 2: Convert to fraction form
135,917.67/203,881.91 = 42,423.42/x - Step 3: Cross multiply
135,917.67x = 203,881.91 × 42,423.42 - Step 4: Simplify right side
135,917.67x = 8,649,367,686.22 - Step 5: Solve for x
x = 8,649,367,686.22/135,917.67 - Step 6: Final answer
x = 63,636.82
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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.