Finding the Fourth Proportional to 115,066.98, 158,760.35 and 74,213.82
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Solution
The fourth proportional to 115,066.98, 158,760.35 and 74,213.82 is: 102,394.38
Step by Step Solution
- Step 1: Write the proportion equation
115,066.98 : 158,760.35 = 74,213.82 : x - Step 2: Convert to fraction form
115,066.98/158,760.35 = 74,213.82/x - Step 3: Cross multiply
115,066.98x = 158,760.35 × 74,213.82 - Step 4: Simplify right side
115,066.98x = 11,782,212,038.04 - Step 5: Solve for x
x = 11,782,212,038.04/115,066.98 - Step 6: Final answer
x = 102,394.38
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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.