Finding the Fourth Proportional to 135,913.08, 187,553.76 and 75,487.68
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Solution
The fourth proportional to 135,913.08, 187,553.76 and 75,487.68 is: 104,169.50
Step by Step Solution
- Step 1: Write the proportion equation
135,913.08 : 187,553.76 = 75,487.68 : x - Step 2: Convert to fraction form
135,913.08/187,553.76 = 75,487.68/x - Step 3: Cross multiply
135,913.08x = 187,553.76 × 75,487.68 - Step 4: Simplify right side
135,913.08x = 14,157,998,217.68 - Step 5: Solve for x
x = 14,157,998,217.68/135,913.08 - Step 6: Final answer
x = 104,169.50
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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.