Finding the Fourth Proportional to 155,735.66, 214,915.28 and 84,115.67
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Solution
The fourth proportional to 155,735.66, 214,915.28 and 84,115.67 is: 116,079.65
Step by Step Solution
- Step 1: Write the proportion equation
155,735.66 : 214,915.28 = 84,115.67 : x - Step 2: Convert to fraction form
155,735.66/214,915.28 = 84,115.67/x - Step 3: Cross multiply
155,735.66x = 214,915.28 × 84,115.67 - Step 4: Simplify right side
155,735.66x = 18,077,741,275.28 - Step 5: Solve for x
x = 18,077,741,275.28/155,735.66 - Step 6: Final answer
x = 116,079.65
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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.