Finding the Fourth Proportional to 134,753.40, 202,130.10 and 128,192.40
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Solution
The fourth proportional to 134,753.40, 202,130.10 and 128,192.40 is: 192,288.60
Step by Step Solution
- Step 1: Write the proportion equation
134,753.40 : 202,130.10 = 128,192.40 : x - Step 2: Convert to fraction form
134,753.40/202,130.10 = 128,192.40/x - Step 3: Cross multiply
134,753.40x = 202,130.10 × 128,192.40 - Step 4: Simplify right side
134,753.40x = 25,911,542,631.24 - Step 5: Solve for x
x = 25,911,542,631.24/134,753.40 - Step 6: Final answer
x = 192,288.60
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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.