Finding the Fourth Proportional to 102,018.36, 140,636.97 and 71,296.08
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Solution
The fourth proportional to 102,018.36, 140,636.97 and 71,296.08 is: 98,284.90
Step by Step Solution
- Step 1: Write the proportion equation
102,018.36 : 140,636.97 = 71,296.08 : x - Step 2: Convert to fraction form
102,018.36/140,636.97 = 71,296.08/x - Step 3: Cross multiply
102,018.36x = 140,636.97 × 71,296.08 - Step 4: Simplify right side
102,018.36x = 10,026,864,664.08 - Step 5: Solve for x
x = 10,026,864,664.08/102,018.36 - Step 6: Final answer
x = 98,284.90
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.