Finding the Fourth Proportional to 107,216.18, 148,052.40 and 66,998.68
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Solution
The fourth proportional to 107,216.18, 148,052.40 and 66,998.68 is: 92,516.96
Step by Step Solution
- Step 1: Write the proportion equation
107,216.18 : 148,052.40 = 66,998.68 : x - Step 2: Convert to fraction form
107,216.18/148,052.40 = 66,998.68/x - Step 3: Cross multiply
107,216.18x = 148,052.40 × 66,998.68 - Step 4: Simplify right side
107,216.18x = 9,919,315,370.83 - Step 5: Solve for x
x = 9,919,315,370.83/107,216.18 - Step 6: Final answer
x = 92,516.96
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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.