Finding the Fourth Proportional to 97,311.60, 145,967.40 and 27,190.80
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Solution
The fourth proportional to 97,311.60, 145,967.40 and 27,190.80 is: 40,786.20
Step by Step Solution
- Step 1: Write the proportion equation
97,311.60 : 145,967.40 = 27,190.80 : x - Step 2: Convert to fraction form
97,311.60/145,967.40 = 27,190.80/x - Step 3: Cross multiply
97,311.60x = 145,967.40 × 27,190.80 - Step 4: Simplify right side
97,311.60x = 3,968,970,379.92 - Step 5: Solve for x
x = 3,968,970,379.92/97,311.60 - Step 6: Final answer
x = 40,786.20
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1.5x scale
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.