Finding the Fourth Proportional to 136,151.08, 187,893.67 and 75,726.09
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Solution
The fourth proportional to 136,151.08, 187,893.67 and 75,726.09 is: 104,504.89
Step by Step Solution
- Step 1: Write the proportion equation
136,151.08 : 187,893.67 = 75,726.09 : x - Step 2: Convert to fraction form
136,151.08/187,893.67 = 75,726.09/x - Step 3: Cross multiply
136,151.08x = 187,893.67 × 75,726.09 - Step 4: Simplify right side
136,151.08x = 14,228,452,964.85 - Step 5: Solve for x
x = 14,228,452,964.85/136,151.08 - Step 6: Final answer
x = 104,504.89
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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.