Finding the Fourth Proportional to 99,806.10, 149,709.15 and 97,837.80
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Solution
The fourth proportional to 99,806.10, 149,709.15 and 97,837.80 is: 146,756.70
Step by Step Solution
- Step 1: Write the proportion equation
99,806.10 : 149,709.15 = 97,837.80 : x - Step 2: Convert to fraction form
99,806.10/149,709.15 = 97,837.80/x - Step 3: Cross multiply
99,806.10x = 149,709.15 × 97,837.80 - Step 4: Simplify right side
99,806.10x = 14,647,213,875.87 - Step 5: Solve for x
x = 14,647,213,875.87/99,806.10 - Step 6: Final answer
x = 146,756.70
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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.