Finding the Fourth Proportional to 112,915.49, 169,438.85 and 50,585.99
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Solution
The fourth proportional to 112,915.49, 169,438.85 and 50,585.99 is: 75,908.38
Step by Step Solution
- Step 1: Write the proportion equation
112,915.49 : 169,438.85 = 50,585.99 : x - Step 2: Convert to fraction form
112,915.49/169,438.85 = 50,585.99/x - Step 3: Cross multiply
112,915.49x = 169,438.85 × 50,585.99 - Step 4: Simplify right side
112,915.49x = 8,571,231,718.78 - Step 5: Solve for x
x = 8,571,231,718.78/112,915.49 - Step 6: Final answer
x = 75,908.38
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1.5x scale
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.