Finding the Fourth Proportional to 131,512.68, 197,318.68 and 78,958.80
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Solution
The fourth proportional to 131,512.68, 197,318.68 and 78,958.80 is: 118,468.02
Step by Step Solution
- Step 1: Write the proportion equation
131,512.68 : 197,318.68 = 78,958.80 : x - Step 2: Convert to fraction form
131,512.68/197,318.68 = 78,958.80/x - Step 3: Cross multiply
131,512.68x = 197,318.68 × 78,958.80 - Step 4: Simplify right side
131,512.68x = 15,580,046,190.38 - Step 5: Solve for x
x = 15,580,046,190.38/131,512.68 - Step 6: Final answer
x = 118,468.02
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.