Finding the Fourth Proportional to 136,239.84, 188,005.66 and 75,813.03
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Solution
The fourth proportional to 136,239.84, 188,005.66 and 75,813.03 is: 104,619.02
Step by Step Solution
- Step 1: Write the proportion equation
136,239.84 : 188,005.66 = 75,813.03 : x - Step 2: Convert to fraction form
136,239.84/188,005.66 = 75,813.03/x - Step 3: Cross multiply
136,239.84x = 188,005.66 × 75,813.03 - Step 4: Simplify right side
136,239.84x = 14,253,278,552.22 - Step 5: Solve for x
x = 14,253,278,552.22/136,239.84 - Step 6: Final answer
x = 104,619.02
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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.