Finding the Fourth Proportional to 129,804.93, 179,115.48 and 75,344.49
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Solution
The fourth proportional to 129,804.93, 179,115.48 and 75,344.49 is: 103,966.50
Step by Step Solution
- Step 1: Write the proportion equation
129,804.93 : 179,115.48 = 75,344.49 : x - Step 2: Convert to fraction form
129,804.93/179,115.48 = 75,344.49/x - Step 3: Cross multiply
129,804.93x = 179,115.48 × 75,344.49 - Step 4: Simplify right side
129,804.93x = 13,495,364,491.71 - Step 5: Solve for x
x = 13,495,364,491.71/129,804.93 - Step 6: Final answer
x = 103,966.50
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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.