Finding the Fourth Proportional to 109,359.08, 149,931.26 and 107,366.18
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Solution
The fourth proportional to 109,359.08, 149,931.26 and 107,366.18 is: 147,198.99
Step by Step Solution
- Step 1: Write the proportion equation
109,359.08 : 149,931.26 = 107,366.18 : x - Step 2: Convert to fraction form
109,359.08/149,931.26 = 107,366.18/x - Step 3: Cross multiply
109,359.08x = 149,931.26 × 107,366.18 - Step 4: Simplify right side
109,359.08x = 16,097,546,648.79 - Step 5: Solve for x
x = 16,097,546,648.79/109,359.08 - Step 6: Final answer
x = 147,198.99
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.