Finding the Fourth Proportional to 131,727.67, 181,782.93 and 71,296.99
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Solution
The fourth proportional to 131,727.67, 181,782.93 and 71,296.99 is: 98,389.17
Step by Step Solution
- Step 1: Write the proportion equation
131,727.67 : 181,782.93 = 71,296.99 : x - Step 2: Convert to fraction form
131,727.67/181,782.93 = 71,296.99/x - Step 3: Cross multiply
131,727.67x = 181,782.93 × 71,296.99 - Step 4: Simplify right side
131,727.67x = 12,960,575,742.38 - Step 5: Solve for x
x = 12,960,575,742.38/131,727.67 - Step 6: Final answer
x = 98,389.17
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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.