Finding the Fourth Proportional to 117,779.91, 177,310.60 and 107,317.26
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Solution
The fourth proportional to 117,779.91, 177,310.60 and 107,317.26 is: 161,559.71
Step by Step Solution
- Step 1: Write the proportion equation
117,779.91 : 177,310.60 = 107,317.26 : x - Step 2: Convert to fraction form
117,779.91/177,310.60 = 107,317.26/x - Step 3: Cross multiply
117,779.91x = 177,310.60 × 107,317.26 - Step 4: Simplify right side
117,779.91x = 19,028,487,760.96 - Step 5: Solve for x
x = 19,028,487,760.96/117,779.91 - Step 6: Final answer
x = 161,559.71
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.