Finding the Fourth Proportional to 129,741.93, 179,043.35 and 70,125.93
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Solution
The fourth proportional to 129,741.93, 179,043.35 and 70,125.93 is: 96,773.50
Step by Step Solution
- Step 1: Write the proportion equation
129,741.93 : 179,043.35 = 70,125.93 : x - Step 2: Convert to fraction form
129,741.93/179,043.35 = 70,125.93/x - Step 3: Cross multiply
129,741.93x = 179,043.35 × 70,125.93 - Step 4: Simplify right side
129,741.93x = 12,555,581,078.44 - Step 5: Solve for x
x = 12,555,581,078.44/129,741.93 - Step 6: Final answer
x = 96,773.50
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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.