Finding the Fourth Proportional to 97,762.20, 146,297.70 and 66,658.20
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Solution
The fourth proportional to 97,762.20, 146,297.70 and 66,658.20 is: 99,751.66
Step by Step Solution
- Step 1: Write the proportion equation
97,762.20 : 146,297.70 = 66,658.20 : x - Step 2: Convert to fraction form
97,762.20/146,297.70 = 66,658.20/x - Step 3: Cross multiply
97,762.20x = 146,297.70 × 66,658.20 - Step 4: Simplify right side
97,762.20x = 9,751,941,346.14 - Step 5: Solve for x
x = 9,751,941,346.14/97,762.20 - Step 6: Final answer
x = 99,751.66
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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.