Finding the Fourth Proportional to 98,109.20, 147,163.80 and 88,267.70
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Solution
The fourth proportional to 98,109.20, 147,163.80 and 88,267.70 is: 132,401.55
Step by Step Solution
- Step 1: Write the proportion equation
98,109.20 : 147,163.80 = 88,267.70 : x - Step 2: Convert to fraction form
98,109.20/147,163.80 = 88,267.70/x - Step 3: Cross multiply
98,109.20x = 147,163.80 × 88,267.70 - Step 4: Simplify right side
98,109.20x = 12,989,810,149.26 - Step 5: Solve for x
x = 12,989,810,149.26/98,109.20 - Step 6: Final answer
x = 132,401.55
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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.