Finding the Fourth Proportional to 109,479.36, 151,122.36 and 85,232.28
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Solution
The fourth proportional to 109,479.36, 151,122.36 and 85,232.28 is: 117,652.34
Step by Step Solution
- Step 1: Write the proportion equation
109,479.36 : 151,122.36 = 85,232.28 : x - Step 2: Convert to fraction form
109,479.36/151,122.36 = 85,232.28/x - Step 3: Cross multiply
109,479.36x = 151,122.36 × 85,232.28 - Step 4: Simplify right side
109,479.36x = 12,880,503,301.78 - Step 5: Solve for x
x = 12,880,503,301.78/109,479.36 - Step 6: Final answer
x = 117,652.34
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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.