Finding the Fourth Proportional to 135,636.98, 187,190.29 and 75,227.08
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Solution
The fourth proportional to 135,636.98, 187,190.29 and 75,227.08 is: 103,819.61
Step by Step Solution
- Step 1: Write the proportion equation
135,636.98 : 187,190.29 = 75,227.08 : x - Step 2: Convert to fraction form
135,636.98/187,190.29 = 75,227.08/x - Step 3: Cross multiply
135,636.98x = 187,190.29 × 75,227.08 - Step 4: Simplify right side
135,636.98x = 14,081,778,898.09 - Step 5: Solve for x
x = 14,081,778,898.09/135,636.98 - Step 6: Final answer
x = 103,819.61
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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.