Finding the Fourth Proportional to 113,802.66, 170,649.18 and 66,431.70
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Solution
The fourth proportional to 113,802.66, 170,649.18 and 66,431.70 is: 99,615.55
Step by Step Solution
- Step 1: Write the proportion equation
113,802.66 : 170,649.18 = 66,431.70 : x - Step 2: Convert to fraction form
113,802.66/170,649.18 = 66,431.70/x - Step 3: Cross multiply
113,802.66x = 170,649.18 × 66,431.70 - Step 4: Simplify right side
113,802.66x = 11,336,515,131.01 - Step 5: Solve for x
x = 11,336,515,131.01/113,802.66 - Step 6: Final answer
x = 99,615.55
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.