Finding the Fourth Proportional to 157,174.08, 216,487.02 and 120,805.98
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Solution
The fourth proportional to 157,174.08, 216,487.02 and 120,805.98 is: 166,394.65
Step by Step Solution
- Step 1: Write the proportion equation
157,174.08 : 216,487.02 = 120,805.98 : x - Step 2: Convert to fraction form
157,174.08/216,487.02 = 120,805.98/x - Step 3: Cross multiply
157,174.08x = 216,487.02 × 120,805.98 - Step 4: Simplify right side
157,174.08x = 26,152,926,608.38 - Step 5: Solve for x
x = 26,152,926,608.38/157,174.08 - Step 6: Final answer
x = 166,394.65
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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.