Finding the Fourth Proportional to 153,205.01, 211,435.68 and 85,234.79
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Solution
The fourth proportional to 153,205.01, 211,435.68 and 85,234.79 is: 117,631.11
Step by Step Solution
- Step 1: Write the proportion equation
153,205.01 : 211,435.68 = 85,234.79 : x - Step 2: Convert to fraction form
153,205.01/211,435.68 = 85,234.79/x - Step 3: Cross multiply
153,205.01x = 211,435.68 × 85,234.79 - Step 4: Simplify right side
153,205.01x = 18,021,675,783.31 - Step 5: Solve for x
x = 18,021,675,783.31/153,205.01 - Step 6: Final answer
x = 117,631.11
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.