Finding the Fourth Proportional to 120,147.30, 180,166.28 and 63,972.99
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Solution
The fourth proportional to 120,147.30, 180,166.28 and 63,972.99 is: 95,930.37
Step by Step Solution
- Step 1: Write the proportion equation
120,147.30 : 180,166.28 = 63,972.99 : x - Step 2: Convert to fraction form
120,147.30/180,166.28 = 63,972.99/x - Step 3: Cross multiply
120,147.30x = 180,166.28 × 63,972.99 - Step 4: Simplify right side
120,147.30x = 11,525,775,308.91 - Step 5: Solve for x
x = 11,525,775,308.91/120,147.30 - Step 6: Final answer
x = 95,930.37
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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.