Finding the Fourth Proportional to 117,778.91, 177,309.10 and 107,316.26
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Solution
The fourth proportional to 117,778.91, 177,309.10 and 107,316.26 is: 161,558.19
Step by Step Solution
- Step 1: Write the proportion equation
117,778.91 : 177,309.10 = 107,316.26 : x - Step 2: Convert to fraction form
117,778.91/177,309.10 = 107,316.26/x - Step 3: Cross multiply
117,778.91x = 177,309.10 × 107,316.26 - Step 4: Simplify right side
117,778.91x = 19,028,148,321.13 - Step 5: Solve for x
x = 19,028,148,321.13/117,778.91 - Step 6: Final answer
x = 161,558.19
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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.