Finding the Fourth Proportional to 129,626.13, 178,884.08 and 70,010.13
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Solution
The fourth proportional to 129,626.13, 178,884.08 and 70,010.13 is: 96,613.99
Step by Step Solution
- Step 1: Write the proportion equation
129,626.13 : 178,884.08 = 70,010.13 : x - Step 2: Convert to fraction form
129,626.13/178,884.08 = 70,010.13/x - Step 3: Cross multiply
129,626.13x = 178,884.08 × 70,010.13 - Step 4: Simplify right side
129,626.13x = 12,523,697,695.73 - Step 5: Solve for x
x = 12,523,697,695.73/129,626.13 - Step 6: Final answer
x = 96,613.99
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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.