Finding the Fourth Proportional to 134,873.75, 186,125.78 and 75,257.75
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Solution
The fourth proportional to 134,873.75, 186,125.78 and 75,257.75 is: 103,855.70
Step by Step Solution
- Step 1: Write the proportion equation
134,873.75 : 186,125.78 = 75,257.75 : x - Step 2: Convert to fraction form
134,873.75/186,125.78 = 75,257.75/x - Step 3: Cross multiply
134,873.75x = 186,125.78 × 75,257.75 - Step 4: Simplify right side
134,873.75x = 14,007,407,419.80 - Step 5: Solve for x
x = 14,007,407,419.80/134,873.75 - Step 6: Final answer
x = 103,855.70
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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.