Finding the Fourth Proportional to 97,781.40, 146,715.30 and 45,163.80
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Solution
The fourth proportional to 97,781.40, 146,715.30 and 45,163.80 is: 67,765.65
Step by Step Solution
- Step 1: Write the proportion equation
97,781.40 : 146,715.30 = 45,163.80 : x - Step 2: Convert to fraction form
97,781.40/146,715.30 = 45,163.80/x - Step 3: Cross multiply
97,781.40x = 146,715.30 × 45,163.80 - Step 4: Simplify right side
97,781.40x = 6,626,220,466.14 - Step 5: Solve for x
x = 6,626,220,466.14/97,781.40 - Step 6: Final answer
x = 67,765.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.