Finding the Fourth Proportional to 109,400.60, 164,163.14 and 87,354.07
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Solution
The fourth proportional to 109,400.60, 164,163.14 and 87,354.07 is: 131,080.80
Step by Step Solution
- Step 1: Write the proportion equation
109,400.60 : 164,163.14 = 87,354.07 : x - Step 2: Convert to fraction form
109,400.60/164,163.14 = 87,354.07/x - Step 3: Cross multiply
109,400.60x = 164,163.14 × 87,354.07 - Step 4: Simplify right side
109,400.60x = 14,340,317,575.80 - Step 5: Solve for x
x = 14,340,317,575.80/109,400.60 - Step 6: Final answer
x = 131,080.80
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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.