Finding the Fourth Proportional to 102,409.20, 153,613.80 and 94,114.80
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Solution
The fourth proportional to 102,409.20, 153,613.80 and 94,114.80 is: 141,172.20
Step by Step Solution
- Step 1: Write the proportion equation
102,409.20 : 153,613.80 = 94,114.80 : x - Step 2: Convert to fraction form
102,409.20/153,613.80 = 94,114.80/x - Step 3: Cross multiply
102,409.20x = 153,613.80 × 94,114.80 - Step 4: Simplify right side
102,409.20x = 14,457,332,064.24 - Step 5: Solve for x
x = 14,457,332,064.24/102,409.20 - Step 6: Final answer
x = 141,172.20
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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.