Finding the Fourth Proportional to 135,484.25, 203,183.30 and 126,639.18
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Solution
The fourth proportional to 135,484.25, 203,183.30 and 126,639.18 is: 189,918.52
Step by Step Solution
- Step 1: Write the proportion equation
135,484.25 : 203,183.30 = 126,639.18 : x - Step 2: Convert to fraction form
135,484.25/203,183.30 = 126,639.18/x - Step 3: Cross multiply
135,484.25x = 203,183.30 × 126,639.18 - Step 4: Simplify right side
135,484.25x = 25,730,966,818.29 - Step 5: Solve for x
x = 25,730,966,818.29/135,484.25 - Step 6: Final answer
x = 189,918.52
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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.