Finding the Fourth Proportional to 97,816.80, 146,725.20 and 91,207.20
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Solution
The fourth proportional to 97,816.80, 146,725.20 and 91,207.20 is: 136,810.80
Step by Step Solution
- Step 1: Write the proportion equation
97,816.80 : 146,725.20 = 91,207.20 : x - Step 2: Convert to fraction form
97,816.80/146,725.20 = 91,207.20/x - Step 3: Cross multiply
97,816.80x = 146,725.20 × 91,207.20 - Step 4: Simplify right side
97,816.80x = 13,382,394,661.44 - Step 5: Solve for x
x = 13,382,394,661.44/97,816.80 - Step 6: Final answer
x = 136,810.80
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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.