Finding the Fourth Proportional to 129,971.37, 179,340.26 and 73,381.53
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Solution
The fourth proportional to 129,971.37, 179,340.26 and 73,381.53 is: 101,255.09
Step by Step Solution
- Step 1: Write the proportion equation
129,971.37 : 179,340.26 = 73,381.53 : x - Step 2: Convert to fraction form
129,971.37/179,340.26 = 73,381.53/x - Step 3: Cross multiply
129,971.37x = 179,340.26 × 73,381.53 - Step 4: Simplify right side
129,971.37x = 13,160,262,669.40 - Step 5: Solve for x
x = 13,160,262,669.40/129,971.37 - Step 6: Final answer
x = 101,255.09
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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.