Finding the Fourth Proportional to 139,232.17, 192,140.57 and 75,569.99
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Solution
The fourth proportional to 139,232.17, 192,140.57 and 75,569.99 is: 104,286.67
Step by Step Solution
- Step 1: Write the proportion equation
139,232.17 : 192,140.57 = 75,569.99 : x - Step 2: Convert to fraction form
139,232.17/192,140.57 = 75,569.99/x - Step 3: Cross multiply
139,232.17x = 192,140.57 × 75,569.99 - Step 4: Simplify right side
139,232.17x = 14,520,059,992.79 - Step 5: Solve for x
x = 14,520,059,992.79/139,232.17 - Step 6: Final answer
x = 104,286.67
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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.