Finding the Fourth Proportional to 135,613.70, 203,420.55 and 129,854.60
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Solution
The fourth proportional to 135,613.70, 203,420.55 and 129,854.60 is: 194,781.90
Step by Step Solution
- Step 1: Write the proportion equation
135,613.70 : 203,420.55 = 129,854.60 : x - Step 2: Convert to fraction form
135,613.70/203,420.55 = 129,854.60/x - Step 3: Cross multiply
135,613.70x = 203,420.55 × 129,854.60 - Step 4: Simplify right side
135,613.70x = 26,415,094,152.03 - Step 5: Solve for x
x = 26,415,094,152.03/135,613.70 - Step 6: Final answer
x = 194,781.90
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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.