Finding the Fourth Proportional to 134,776.40, 202,213.20 and 129,916.40
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Solution
The fourth proportional to 134,776.40, 202,213.20 and 129,916.40 is: 194,921.45
Step by Step Solution
- Step 1: Write the proportion equation
134,776.40 : 202,213.20 = 129,916.40 : x - Step 2: Convert to fraction form
134,776.40/202,213.20 = 129,916.40/x - Step 3: Cross multiply
134,776.40x = 202,213.20 × 129,916.40 - Step 4: Simplify right side
134,776.40x = 26,270,810,976.48 - Step 5: Solve for x
x = 26,270,810,976.48/134,776.40 - Step 6: Final answer
x = 194,921.45
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1.5x scale
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.