Finding the Fourth Proportional to 134,713.20, 201,724.20 and 128,492.40
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Solution
The fourth proportional to 134,713.20, 201,724.20 and 128,492.40 is: 192,408.96
Step by Step Solution
- Step 1: Write the proportion equation
134,713.20 : 201,724.20 = 128,492.40 : x - Step 2: Convert to fraction form
134,713.20/201,724.20 = 128,492.40/x - Step 3: Cross multiply
134,713.20x = 201,724.20 × 128,492.40 - Step 4: Simplify right side
134,713.20x = 25,920,026,596.08 - Step 5: Solve for x
x = 25,920,026,596.08/134,713.20 - Step 6: Final answer
x = 192,408.96
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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.