Finding the Fourth Proportional to 135,888.49, 187,530.96 and 75,460.15
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Solution
The fourth proportional to 135,888.49, 187,530.96 and 75,460.15 is: 104,137.70
Step by Step Solution
- Step 1: Write the proportion equation
135,888.49 : 187,530.96 = 75,460.15 : x - Step 2: Convert to fraction form
135,888.49/187,530.96 = 75,460.15/x - Step 3: Cross multiply
135,888.49x = 187,530.96 × 75,460.15 - Step 4: Simplify right side
135,888.49x = 14,151,114,371.24 - Step 5: Solve for x
x = 14,151,114,371.24/135,888.49 - Step 6: Final answer
x = 104,137.70
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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.