Finding the Fourth Proportional to 98,915.19, 136,503.26 and 53,592.95
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Solution
The fourth proportional to 98,915.19, 136,503.26 and 53,592.95 is: 73,958.42
Step by Step Solution
- Step 1: Write the proportion equation
98,915.19 : 136,503.26 = 53,592.95 : x - Step 2: Convert to fraction form
98,915.19/136,503.26 = 53,592.95/x - Step 3: Cross multiply
98,915.19x = 136,503.26 × 53,592.95 - Step 4: Simplify right side
98,915.19x = 7,315,611,437.54 - Step 5: Solve for x
x = 7,315,611,437.54/98,915.19 - Step 6: Final answer
x = 73,958.42
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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.