Finding the Fourth Proportional to 136,144.15, 204,235.66 and 42,657.19
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Solution
The fourth proportional to 136,144.15, 204,235.66 and 42,657.19 is: 63,991.87
Step by Step Solution
- Step 1: Write the proportion equation
136,144.15 : 204,235.66 = 42,657.19 : x - Step 2: Convert to fraction form
136,144.15/204,235.66 = 42,657.19/x - Step 3: Cross multiply
136,144.15x = 204,235.66 × 42,657.19 - Step 4: Simplify right side
136,144.15x = 8,712,118,896.13 - Step 5: Solve for x
x = 8,712,118,896.13/136,144.15 - Step 6: Final answer
x = 63,991.87
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.