Finding the Fourth Proportional to 99,213.84, 136,860.56 and 62,848.68
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Solution
The fourth proportional to 99,213.84, 136,860.56 and 62,848.68 is: 86,696.63
Step by Step Solution
- Step 1: Write the proportion equation
99,213.84 : 136,860.56 = 62,848.68 : x - Step 2: Convert to fraction form
99,213.84/136,860.56 = 62,848.68/x - Step 3: Cross multiply
99,213.84x = 136,860.56 × 62,848.68 - Step 4: Simplify right side
99,213.84x = 8,601,505,540.06 - Step 5: Solve for x
x = 8,601,505,540.06/99,213.84 - Step 6: Final answer
x = 86,696.63
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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.