Finding the Fourth Proportional to 140,258.79, 193,557.60 and 76,596.84
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Solution
The fourth proportional to 140,258.79, 193,557.60 and 76,596.84 is: 105,703.90
Step by Step Solution
- Step 1: Write the proportion equation
140,258.79 : 193,557.60 = 76,596.84 : x - Step 2: Convert to fraction form
140,258.79/193,557.60 = 76,596.84/x - Step 3: Cross multiply
140,258.79x = 193,557.60 × 76,596.84 - Step 4: Simplify right side
140,258.79x = 14,825,900,517.98 - Step 5: Solve for x
x = 14,825,900,517.98/140,258.79 - Step 6: Final answer
x = 105,703.90
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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.