Finding the Fourth Proportional to 136,060.18, 187,765.30 and 74,808.96
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Solution
The fourth proportional to 136,060.18, 187,765.30 and 74,808.96 is: 103,237.60
Step by Step Solution
- Step 1: Write the proportion equation
136,060.18 : 187,765.30 = 74,808.96 : x - Step 2: Convert to fraction form
136,060.18/187,765.30 = 74,808.96/x - Step 3: Cross multiply
136,060.18x = 187,765.30 × 74,808.96 - Step 4: Simplify right side
136,060.18x = 14,046,526,630.07 - Step 5: Solve for x
x = 14,046,526,630.07/136,060.18 - Step 6: Final answer
x = 103,237.60
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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.