Finding the Fourth Proportional to 136,493.65, 188,358.68 and 76,062.96
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Solution
The fourth proportional to 136,493.65, 188,358.68 and 76,062.96 is: 104,965.46
Step by Step Solution
- Step 1: Write the proportion equation
136,493.65 : 188,358.68 = 76,062.96 : x - Step 2: Convert to fraction form
136,493.65/188,358.68 = 76,062.96/x - Step 3: Cross multiply
136,493.65x = 188,358.68 × 76,062.96 - Step 4: Simplify right side
136,493.65x = 14,327,118,362.18 - Step 5: Solve for x
x = 14,327,118,362.18/136,493.65 - Step 6: Final answer
x = 104,965.46
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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.