Finding the Fourth Proportional to 99,782.28, 149,693.14 and 36,602.99
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Solution
The fourth proportional to 99,782.28, 149,693.14 and 36,602.99 is: 54,911.72
Step by Step Solution
- Step 1: Write the proportion equation
99,782.28 : 149,693.14 = 36,602.99 : x - Step 2: Convert to fraction form
99,782.28/149,693.14 = 36,602.99/x - Step 3: Cross multiply
99,782.28x = 149,693.14 × 36,602.99 - Step 4: Simplify right side
99,782.28x = 5,479,216,506.49 - Step 5: Solve for x
x = 5,479,216,506.49/99,782.28 - Step 6: Final answer
x = 54,911.72
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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.