Finding the Fourth Proportional to 146,756.13, 202,523.52 and 79,688.13
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Solution
The fourth proportional to 146,756.13, 202,523.52 and 79,688.13 is: 109,969.65
Step by Step Solution
- Step 1: Write the proportion equation
146,756.13 : 202,523.52 = 79,688.13 : x - Step 2: Convert to fraction form
146,756.13/202,523.52 = 79,688.13/x - Step 3: Cross multiply
146,756.13x = 202,523.52 × 79,688.13 - Step 4: Simplify right side
146,756.13x = 16,138,720,589.82 - Step 5: Solve for x
x = 16,138,720,589.82/146,756.13 - Step 6: Final answer
x = 109,969.65
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.