Finding the Fourth Proportional to 135,677.09, 187,245.86 and 75,267.18
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Solution
The fourth proportional to 135,677.09, 187,245.86 and 75,267.18 is: 103,875.07
Step by Step Solution
- Step 1: Write the proportion equation
135,677.09 : 187,245.86 = 75,267.18 : x - Step 2: Convert to fraction form
135,677.09/187,245.86 = 75,267.18/x - Step 3: Cross multiply
135,677.09x = 187,245.86 × 75,267.18 - Step 4: Simplify right side
135,677.09x = 14,093,467,472.54 - Step 5: Solve for x
x = 14,093,467,472.54/135,677.09 - Step 6: Final answer
x = 103,875.07
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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.