Finding the Fourth Proportional to 120,341.10, 180,461.97 and 45,448.50
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Solution
The fourth proportional to 120,341.10, 180,461.97 and 45,448.50 is: 68,153.99
Step by Step Solution
- Step 1: Write the proportion equation
120,341.10 : 180,461.97 = 45,448.50 : x - Step 2: Convert to fraction form
120,341.10/180,461.97 = 45,448.50/x - Step 3: Cross multiply
120,341.10x = 180,461.97 × 45,448.50 - Step 4: Simplify right side
120,341.10x = 8,201,725,843.55 - Step 5: Solve for x
x = 8,201,725,843.55/120,341.10 - Step 6: Final answer
x = 68,153.99
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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.