Finding the Fourth Proportional to 136,547.19, 188,357.94 and 85,471.26
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Solution
The fourth proportional to 136,547.19, 188,357.94 and 85,471.26 is: 117,902.03
Step by Step Solution
- Step 1: Write the proportion equation
136,547.19 : 188,357.94 = 85,471.26 : x - Step 2: Convert to fraction form
136,547.19/188,357.94 = 85,471.26/x - Step 3: Cross multiply
136,547.19x = 188,357.94 × 85,471.26 - Step 4: Simplify right side
136,547.19x = 16,099,190,462.80 - Step 5: Solve for x
x = 16,099,190,462.80/136,547.19 - Step 6: Final answer
x = 117,902.03
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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.