Finding the Fourth Proportional to 131,125.81, 180,953.35 and 73,765.17
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Solution
The fourth proportional to 131,125.81, 180,953.35 and 73,765.17 is: 101,795.78
Step by Step Solution
- Step 1: Write the proportion equation
131,125.81 : 180,953.35 = 73,765.17 : x - Step 2: Convert to fraction form
131,125.81/180,953.35 = 73,765.17/x - Step 3: Cross multiply
131,125.81x = 180,953.35 × 73,765.17 - Step 4: Simplify right side
131,125.81x = 13,348,054,647.87 - Step 5: Solve for x
x = 13,348,054,647.87/131,125.81 - Step 6: Final answer
x = 101,795.78
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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.