Finding the Fourth Proportional to 114,513.79, 157,974.60 and 76,291.12
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Solution
The fourth proportional to 114,513.79, 157,974.60 and 76,291.12 is: 105,245.48
Step by Step Solution
- Step 1: Write the proportion equation
114,513.79 : 157,974.60 = 76,291.12 : x - Step 2: Convert to fraction form
114,513.79/157,974.60 = 76,291.12/x - Step 3: Cross multiply
114,513.79x = 157,974.60 × 76,291.12 - Step 4: Simplify right side
114,513.79x = 12,052,059,165.55 - Step 5: Solve for x
x = 12,052,059,165.55/114,513.79 - Step 6: Final answer
x = 105,245.48
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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.