Finding the Fourth Proportional to 136,888.74, 188,904.43 and 76,460.26
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Solution
The fourth proportional to 136,888.74, 188,904.43 and 76,460.26 is: 105,514.02
Step by Step Solution
- Step 1: Write the proportion equation
136,888.74 : 188,904.43 = 76,460.26 : x - Step 2: Convert to fraction form
136,888.74/188,904.43 = 76,460.26/x - Step 3: Cross multiply
136,888.74x = 188,904.43 × 76,460.26 - Step 4: Simplify right side
136,888.74x = 14,443,681,832.95 - Step 5: Solve for x
x = 14,443,681,832.95/136,888.74 - Step 6: Final answer
x = 105,514.02
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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.