Finding the Fourth Proportional to 97,972.20, 146,933.60 and 47,321.28
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Solution
The fourth proportional to 97,972.20, 146,933.60 and 47,321.28 is: 70,969.99
Step by Step Solution
- Step 1: Write the proportion equation
97,972.20 : 146,933.60 = 47,321.28 : x - Step 2: Convert to fraction form
97,972.20/146,933.60 = 47,321.28/x - Step 3: Cross multiply
97,972.20x = 146,933.60 × 47,321.28 - Step 4: Simplify right side
97,972.20x = 6,953,085,790.40 - Step 5: Solve for x
x = 6,953,085,790.40/97,972.20 - Step 6: Final answer
x = 70,969.99
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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.