Finding the Fourth Proportional to 99,887.93, 149,831.63 and 82,286.99
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Solution
The fourth proportional to 99,887.93, 149,831.63 and 82,286.99 is: 123,430.26
Step by Step Solution
- Step 1: Write the proportion equation
99,887.93 : 149,831.63 = 82,286.99 : x - Step 2: Convert to fraction form
99,887.93/149,831.63 = 82,286.99/x - Step 3: Cross multiply
99,887.93x = 149,831.63 × 82,286.99 - Step 4: Simplify right side
99,887.93x = 12,329,193,428.06 - Step 5: Solve for x
x = 12,329,193,428.06/99,887.93 - Step 6: Final answer
x = 123,430.26
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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.