Finding the Fourth Proportional to 131,782.01, 181,858.86 and 71,352.68
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Solution
The fourth proportional to 131,782.01, 181,858.86 and 71,352.68 is: 98,466.53
Step by Step Solution
- Step 1: Write the proportion equation
131,782.01 : 181,858.86 = 71,352.68 : x - Step 2: Convert to fraction form
131,782.01/181,858.86 = 71,352.68/x - Step 3: Cross multiply
131,782.01x = 181,858.86 × 71,352.68 - Step 4: Simplify right side
131,782.01x = 12,976,116,133.45 - Step 5: Solve for x
x = 12,976,116,133.45/131,782.01 - Step 6: Final answer
x = 98,466.53
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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.