Finding the Fourth Proportional to 129,825.75, 179,160.08 and 70,209.75
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Solution
The fourth proportional to 129,825.75, 179,160.08 and 70,209.75 is: 96,889.75
Step by Step Solution
- Step 1: Write the proportion equation
129,825.75 : 179,160.08 = 70,209.75 : x - Step 2: Convert to fraction form
129,825.75/179,160.08 = 70,209.75/x - Step 3: Cross multiply
129,825.75x = 179,160.08 × 70,209.75 - Step 4: Simplify right side
129,825.75x = 12,578,784,075.73 - Step 5: Solve for x
x = 12,578,784,075.73/129,825.75 - Step 6: Final answer
x = 96,889.75
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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.