Finding the Fourth Proportional to 102,459.75, 141,395.57 and 57,747.75
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Solution
The fourth proportional to 102,459.75, 141,395.57 and 57,747.75 is: 79,692.52
Step by Step Solution
- Step 1: Write the proportion equation
102,459.75 : 141,395.57 = 57,747.75 : x - Step 2: Convert to fraction form
102,459.75/141,395.57 = 57,747.75/x - Step 3: Cross multiply
102,459.75x = 141,395.57 × 57,747.75 - Step 4: Simplify right side
102,459.75x = 8,165,275,738.73 - Step 5: Solve for x
x = 8,165,275,738.73/102,459.75 - Step 6: Final answer
x = 79,692.52
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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.