Finding the Fourth Proportional to 109,752.15, 151,450.11 and 64,431.99
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Solution
The fourth proportional to 109,752.15, 151,450.11 and 64,431.99 is: 88,911.53
Step by Step Solution
- Step 1: Write the proportion equation
109,752.15 : 151,450.11 = 64,431.99 : x - Step 2: Convert to fraction form
109,752.15/151,450.11 = 64,431.99/x - Step 3: Cross multiply
109,752.15x = 151,450.11 × 64,431.99 - Step 4: Simplify right side
109,752.15x = 9,758,231,973.02 - Step 5: Solve for x
x = 9,758,231,973.02/109,752.15 - Step 6: Final answer
x = 88,911.53
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.