Finding the Fourth Proportional to 102,679.46, 141,536.91 and 94,431.05
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Solution
The fourth proportional to 102,679.46, 141,536.91 and 94,431.05 is: 130,167.02
Step by Step Solution
- Step 1: Write the proportion equation
102,679.46 : 141,536.91 = 94,431.05 : x - Step 2: Convert to fraction form
102,679.46/141,536.91 = 94,431.05/x - Step 3: Cross multiply
102,679.46x = 141,536.91 × 94,431.05 - Step 4: Simplify right side
102,679.46x = 13,365,479,025.06 - Step 5: Solve for x
x = 13,365,479,025.06/102,679.46 - Step 6: Final answer
x = 130,167.02
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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.