Finding the Fourth Proportional to 130,380.31, 179,893.99 and 73,791.68
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Solution
The fourth proportional to 130,380.31, 179,893.99 and 73,791.68 is: 101,815.07
Step by Step Solution
- Step 1: Write the proportion equation
130,380.31 : 179,893.99 = 73,791.68 : x - Step 2: Convert to fraction form
130,380.31/179,893.99 = 73,791.68/x - Step 3: Cross multiply
130,380.31x = 179,893.99 × 73,791.68 - Step 4: Simplify right side
130,380.31x = 13,274,679,744.00 - Step 5: Solve for x
x = 13,274,679,744.00/130,380.31 - Step 6: Final answer
x = 101,815.07
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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.