Finding the Fourth Proportional to 97,687.80, 146,531.70 and 45,199.80
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Solution
The fourth proportional to 97,687.80, 146,531.70 and 45,199.80 is: 67,799.70
Step by Step Solution
- Step 1: Write the proportion equation
97,687.80 : 146,531.70 = 45,199.80 : x - Step 2: Convert to fraction form
97,687.80/146,531.70 = 45,199.80/x - Step 3: Cross multiply
97,687.80x = 146,531.70 × 45,199.80 - Step 4: Simplify right side
97,687.80x = 6,623,203,533.66 - Step 5: Solve for x
x = 6,623,203,533.66/97,687.80 - Step 6: Final answer
x = 67,799.70
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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.