Finding the Fourth Proportional to 134,415.40, 201,428.70 and 59,474.20
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Solution
The fourth proportional to 134,415.40, 201,428.70 and 59,474.20 is: 89,125.28
Step by Step Solution
- Step 1: Write the proportion equation
134,415.40 : 201,428.70 = 59,474.20 : x - Step 2: Convert to fraction form
134,415.40/201,428.70 = 59,474.20/x - Step 3: Cross multiply
134,415.40x = 201,428.70 × 59,474.20 - Step 4: Simplify right side
134,415.40x = 11,979,810,789.54 - Step 5: Solve for x
x = 11,979,810,789.54/134,415.40 - Step 6: Final answer
x = 89,125.28
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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.