Finding the Fourth Proportional to 110,236.09, 152,121.40 and 64,915.99
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Solution
The fourth proportional to 110,236.09, 152,121.40 and 64,915.99 is: 89,581.47
Step by Step Solution
- Step 1: Write the proportion equation
110,236.09 : 152,121.40 = 64,915.99 : x - Step 2: Convert to fraction form
110,236.09/152,121.40 = 64,915.99/x - Step 3: Cross multiply
110,236.09x = 152,121.40 × 64,915.99 - Step 4: Simplify right side
110,236.09x = 9,875,111,281.19 - Step 5: Solve for x
x = 9,875,111,281.19/110,236.09 - Step 6: Final answer
x = 89,581.47
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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.