Finding the Fourth Proportional to 99,203.88, 136,902.36 and 53,882.30
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Solution
The fourth proportional to 99,203.88, 136,902.36 and 53,882.30 is: 74,358.12
Step by Step Solution
- Step 1: Write the proportion equation
99,203.88 : 136,902.36 = 53,882.30 : x - Step 2: Convert to fraction form
99,203.88/136,902.36 = 53,882.30/x - Step 3: Cross multiply
99,203.88x = 136,902.36 × 53,882.30 - Step 4: Simplify right side
99,203.88x = 7,376,614,032.23 - Step 5: Solve for x
x = 7,376,614,032.23/99,203.88 - Step 6: Final answer
x = 74,358.12
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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.