Finding the Fourth Proportional to 135,709.70, 203,467.35 and 56,783.30
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Solution
The fourth proportional to 135,709.70, 203,467.35 and 56,783.30 is: 85,134.28
Step by Step Solution
- Step 1: Write the proportion equation
135,709.70 : 203,467.35 = 56,783.30 : x - Step 2: Convert to fraction form
135,709.70/203,467.35 = 56,783.30/x - Step 3: Cross multiply
135,709.70x = 203,467.35 × 56,783.30 - Step 4: Simplify right side
135,709.70x = 11,553,547,575.26 - Step 5: Solve for x
x = 11,553,547,575.26/135,709.70 - Step 6: Final answer
x = 85,134.28
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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.