Finding the Fourth Proportional to 145,636.08, 218,138.67 and 70,599.27
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Solution
The fourth proportional to 145,636.08, 218,138.67 and 70,599.27 is: 105,745.99
Step by Step Solution
- Step 1: Write the proportion equation
145,636.08 : 218,138.67 = 70,599.27 : x - Step 2: Convert to fraction form
145,636.08/218,138.67 = 70,599.27/x - Step 3: Cross multiply
145,636.08x = 218,138.67 × 70,599.27 - Step 4: Simplify right side
145,636.08x = 15,400,431,065.28 - Step 5: Solve for x
x = 15,400,431,065.28/145,636.08 - Step 6: Final answer
x = 105,745.99
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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.