Finding the Fourth Proportional to 98,915.96, 136,497.56 and 63,102.12
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Solution
The fourth proportional to 98,915.96, 136,497.56 and 63,102.12 is: 87,076.80
Step by Step Solution
- Step 1: Write the proportion equation
98,915.96 : 136,497.56 = 63,102.12 : x - Step 2: Convert to fraction form
98,915.96/136,497.56 = 63,102.12/x - Step 3: Cross multiply
98,915.96x = 136,497.56 × 63,102.12 - Step 4: Simplify right side
98,915.96x = 8,613,285,095.32 - Step 5: Solve for x
x = 8,613,285,095.32/98,915.96 - Step 6: Final answer
x = 87,076.80
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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.