Finding the Fourth Proportional to 120,328.21, 166,070.30 and 69,331.17
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Solution
The fourth proportional to 120,328.21, 166,070.30 and 69,331.17 is: 95,687.02
Step by Step Solution
- Step 1: Write the proportion equation
120,328.21 : 166,070.30 = 69,331.17 : x - Step 2: Convert to fraction form
120,328.21/166,070.30 = 69,331.17/x - Step 3: Cross multiply
120,328.21x = 166,070.30 × 69,331.17 - Step 4: Simplify right side
120,328.21x = 11,513,847,466.13 - Step 5: Solve for x
x = 11,513,847,466.13/120,328.21 - Step 6: Final answer
x = 95,687.02
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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.