Finding the Fourth Proportional to 105,000.68, 157,472.94 and 71,715.08
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Solution
The fourth proportional to 105,000.68, 157,472.94 and 71,715.08 is: 107,553.44
Step by Step Solution
- Step 1: Write the proportion equation
105,000.68 : 157,472.94 = 71,715.08 : x - Step 2: Convert to fraction form
105,000.68/157,472.94 = 71,715.08/x - Step 3: Cross multiply
105,000.68x = 157,472.94 × 71,715.08 - Step 4: Simplify right side
105,000.68x = 11,293,184,489.94 - Step 5: Solve for x
x = 11,293,184,489.94/105,000.68 - Step 6: Final answer
x = 107,553.44
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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.