Finding the Fourth Proportional to 131,875.09, 181,987.39 and 71,447.26
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Solution
The fourth proportional to 131,875.09, 181,987.39 and 71,447.26 is: 98,597.09
Step by Step Solution
- Step 1: Write the proportion equation
131,875.09 : 181,987.39 = 71,447.26 : x - Step 2: Convert to fraction form
131,875.09/181,987.39 = 71,447.26/x - Step 3: Cross multiply
131,875.09x = 181,987.39 × 71,447.26 - Step 4: Simplify right side
131,875.09x = 13,002,500,370.05 - Step 5: Solve for x
x = 13,002,500,370.05/131,875.09 - Step 6: Final answer
x = 98,597.09
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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.