Finding the Fourth Proportional to 99,176.70, 148,435.98 and 90,312.44
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Solution
The fourth proportional to 99,176.70, 148,435.98 and 90,312.44 is: 135,168.99
Step by Step Solution
- Step 1: Write the proportion equation
99,176.70 : 148,435.98 = 90,312.44 : x - Step 2: Convert to fraction form
99,176.70/148,435.98 = 90,312.44/x - Step 3: Cross multiply
99,176.70x = 148,435.98 × 90,312.44 - Step 4: Simplify right side
99,176.70x = 13,405,614,456.74 - Step 5: Solve for x
x = 13,405,614,456.74/99,176.70 - Step 6: Final answer
x = 135,168.99
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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.