Finding the Fourth Proportional to 99,416.31, 148,844.61 and 74,571.99
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Solution
The fourth proportional to 99,416.31, 148,844.61 and 74,571.99 is: 111,648.07
Step by Step Solution
- Step 1: Write the proportion equation
99,416.31 : 148,844.61 = 74,571.99 : x - Step 2: Convert to fraction form
99,416.31/148,844.61 = 74,571.99/x - Step 3: Cross multiply
99,416.31x = 148,844.61 × 74,571.99 - Step 4: Simplify right side
99,416.31x = 11,099,638,768.47 - Step 5: Solve for x
x = 11,099,638,768.47/99,416.31 - Step 6: Final answer
x = 111,648.07
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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.