Finding the Fourth Proportional to 136,060.43, 187,765.64 and 74,809.21
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Solution
The fourth proportional to 136,060.43, 187,765.64 and 74,809.21 is: 103,237.95
Step by Step Solution
- Step 1: Write the proportion equation
136,060.43 : 187,765.64 = 74,809.21 : x - Step 2: Convert to fraction form
136,060.43/187,765.64 = 74,809.21/x - Step 3: Cross multiply
136,060.43x = 187,765.64 × 74,809.21 - Step 4: Simplify right side
136,060.43x = 14,046,599,193.54 - Step 5: Solve for x
x = 14,046,599,193.54/136,060.43 - Step 6: Final answer
x = 103,237.95
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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.