Finding the Fourth Proportional to 135,665.69, 187,206.29 and 75,236.14
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Solution
The fourth proportional to 135,665.69, 187,206.29 and 75,236.14 is: 103,819.02
Step by Step Solution
- Step 1: Write the proportion equation
135,665.69 : 187,206.29 = 75,236.14 : x - Step 2: Convert to fraction form
135,665.69/187,206.29 = 75,236.14/x - Step 3: Cross multiply
135,665.69x = 187,206.29 × 75,236.14 - Step 4: Simplify right side
135,665.69x = 14,084,678,501.15 - Step 5: Solve for x
x = 14,084,678,501.15/135,665.69 - Step 6: Final answer
x = 103,819.02
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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.