Finding the Fourth Proportional to 129,935.19, 179,310.57 and 70,319.19
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Solution
The fourth proportional to 129,935.19, 179,310.57 and 70,319.19 is: 97,040.49
Step by Step Solution
- Step 1: Write the proportion equation
129,935.19 : 179,310.57 = 70,319.19 : x - Step 2: Convert to fraction form
129,935.19/179,310.57 = 70,319.19/x - Step 3: Cross multiply
129,935.19x = 179,310.57 × 70,319.19 - Step 4: Simplify right side
129,935.19x = 12,608,974,040.84 - Step 5: Solve for x
x = 12,608,974,040.84/129,935.19 - Step 6: Final answer
x = 97,040.49
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1.5x scale
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.