Finding the Fourth Proportional to 107,965.74, 148,915.56 and 93,599.88
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Solution
The fourth proportional to 107,965.74, 148,915.56 and 93,599.88 is: 129,100.94
Step by Step Solution
- Step 1: Write the proportion equation
107,965.74 : 148,915.56 = 93,599.88 : x - Step 2: Convert to fraction form
107,965.74/148,915.56 = 93,599.88/x - Step 3: Cross multiply
107,965.74x = 148,915.56 × 93,599.88 - Step 4: Simplify right side
107,965.74x = 13,938,478,546.13 - Step 5: Solve for x
x = 13,938,478,546.13/107,965.74 - Step 6: Final answer
x = 129,100.94
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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.