Finding the Fourth Proportional to 131,115.96, 180,938.19 and 73,750.95
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Solution
The fourth proportional to 131,115.96, 180,938.19 and 73,750.95 is: 101,775.28
Step by Step Solution
- Step 1: Write the proportion equation
131,115.96 : 180,938.19 = 73,750.95 : x - Step 2: Convert to fraction form
131,115.96/180,938.19 = 73,750.95/x - Step 3: Cross multiply
131,115.96x = 180,938.19 × 73,750.95 - Step 4: Simplify right side
131,115.96x = 13,344,363,403.78 - Step 5: Solve for x
x = 13,344,363,403.78/131,115.96 - Step 6: Final answer
x = 101,775.28
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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.