Finding the Fourth Proportional to 135,677.25, 187,234.65 and 75,257.19
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Solution
The fourth proportional to 135,677.25, 187,234.65 and 75,257.19 is: 103,854.95
Step by Step Solution
- Step 1: Write the proportion equation
135,677.25 : 187,234.65 = 75,257.19 : x - Step 2: Convert to fraction form
135,677.25/187,234.65 = 75,257.19/x - Step 3: Cross multiply
135,677.25x = 187,234.65 × 75,257.19 - Step 4: Simplify right side
135,677.25x = 14,090,753,629.63 - Step 5: Solve for x
x = 14,090,753,629.63/135,677.25 - Step 6: Final answer
x = 103,854.95
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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.