Finding the Fourth Proportional to 117,589.34, 162,211.08 and 74,492.79
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Solution
The fourth proportional to 117,589.34, 162,211.08 and 74,492.79 is: 102,760.65
Step by Step Solution
- Step 1: Write the proportion equation
117,589.34 : 162,211.08 = 74,492.79 : x - Step 2: Convert to fraction form
117,589.34/162,211.08 = 74,492.79/x - Step 3: Cross multiply
117,589.34x = 162,211.08 × 74,492.79 - Step 4: Simplify right side
117,589.34x = 12,083,555,918.11 - Step 5: Solve for x
x = 12,083,555,918.11/117,589.34 - Step 6: Final answer
x = 102,760.65
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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.