Finding the Fourth Proportional to 153,861.68, 230,816.82 and 65,115.65
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Solution
The fourth proportional to 153,861.68, 230,816.82 and 65,115.65 is: 97,683.75
Step by Step Solution
- Step 1: Write the proportion equation
153,861.68 : 230,816.82 = 65,115.65 : x - Step 2: Convert to fraction form
153,861.68/230,816.82 = 65,115.65/x - Step 3: Cross multiply
153,861.68x = 230,816.82 × 65,115.65 - Step 4: Simplify right side
153,861.68x = 15,029,786,111.15 - Step 5: Solve for x
x = 15,029,786,111.15/153,861.68 - Step 6: Final answer
x = 97,683.75
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.