Finding the Fourth Proportional to 126,963.21, 190,476.29 and 89,596.29
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Solution
The fourth proportional to 126,963.21, 190,476.29 and 89,596.29 is: 134,416.65
Step by Step Solution
- Step 1: Write the proportion equation
126,963.21 : 190,476.29 = 89,596.29 : x - Step 2: Convert to fraction form
126,963.21/190,476.29 = 89,596.29/x - Step 3: Cross multiply
126,963.21x = 190,476.29 × 89,596.29 - Step 4: Simplify right side
126,963.21x = 17,065,968,916.96 - Step 5: Solve for x
x = 17,065,968,916.96/126,963.21 - Step 6: Final answer
x = 134,416.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.