Finding the Fourth Proportional to 99,634.24, 149,620.68 and 66,566.80
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Solution
The fourth proportional to 99,634.24, 149,620.68 and 66,566.80 is: 99,963.32
Step by Step Solution
- Step 1: Write the proportion equation
99,634.24 : 149,620.68 = 66,566.80 : x - Step 2: Convert to fraction form
99,634.24/149,620.68 = 66,566.80/x - Step 3: Cross multiply
99,634.24x = 149,620.68 × 66,566.80 - Step 4: Simplify right side
99,634.24x = 9,959,769,881.42 - Step 5: Solve for x
x = 9,959,769,881.42/99,634.24 - Step 6: Final answer
x = 99,963.32
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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.