Finding the Fourth Proportional to 97,409.80, 146,114.70 and 74,081.80
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Solution
The fourth proportional to 97,409.80, 146,114.70 and 74,081.80 is: 111,122.70
Step by Step Solution
- Step 1: Write the proportion equation
97,409.80 : 146,114.70 = 74,081.80 : x - Step 2: Convert to fraction form
97,409.80/146,114.70 = 74,081.80/x - Step 3: Cross multiply
97,409.80x = 146,114.70 × 74,081.80 - Step 4: Simplify right side
97,409.80x = 10,824,439,982.46 - Step 5: Solve for x
x = 10,824,439,982.46/97,409.80 - Step 6: Final answer
x = 111,122.70
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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.