Finding the Fourth Proportional to 97,794.80, 146,231.40 and 72,911.60
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Solution
The fourth proportional to 97,794.80, 146,231.40 and 72,911.60 is: 109,023.85
Step by Step Solution
- Step 1: Write the proportion equation
97,794.80 : 146,231.40 = 72,911.60 : x - Step 2: Convert to fraction form
97,794.80/146,231.40 = 72,911.60/x - Step 3: Cross multiply
97,794.80x = 146,231.40 × 72,911.60 - Step 4: Simplify right side
97,794.80x = 10,661,965,344.24 - Step 5: Solve for x
x = 10,661,965,344.24/97,794.80 - Step 6: Final answer
x = 109,023.85
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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.