Finding the Fourth Proportional to 99,715.19, 149,572.78 and 40,536.99
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Solution
The fourth proportional to 99,715.19, 149,572.78 and 40,536.99 is: 60,805.49
Step by Step Solution
- Step 1: Write the proportion equation
99,715.19 : 149,572.78 = 40,536.99 : x - Step 2: Convert to fraction form
99,715.19/149,572.78 = 40,536.99/x - Step 3: Cross multiply
99,715.19x = 149,572.78 × 40,536.99 - Step 4: Simplify right side
99,715.19x = 6,063,230,185.79 - Step 5: Solve for x
x = 6,063,230,185.79/99,715.19 - Step 6: Final answer
x = 60,805.49
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1.5x scale
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.