Finding the Fourth Proportional to 99,776.70, 149,664.87 and 40,599.18
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Solution
The fourth proportional to 99,776.70, 149,664.87 and 40,599.18 is: 60,898.70
Step by Step Solution
- Step 1: Write the proportion equation
99,776.70 : 149,664.87 = 40,599.18 : x - Step 2: Convert to fraction form
99,776.70/149,664.87 = 40,599.18/x - Step 3: Cross multiply
99,776.70x = 149,664.87 × 40,599.18 - Step 4: Simplify right side
99,776.70x = 6,076,270,996.81 - Step 5: Solve for x
x = 6,076,270,996.81/99,776.70 - Step 6: Final answer
x = 60,898.70
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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.