Finding the Fourth Proportional to 134,155.20, 201,232.80 and 71,947.20
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Solution
The fourth proportional to 134,155.20, 201,232.80 and 71,947.20 is: 107,920.80
Step by Step Solution
- Step 1: Write the proportion equation
134,155.20 : 201,232.80 = 71,947.20 : x - Step 2: Convert to fraction form
134,155.20/201,232.80 = 71,947.20/x - Step 3: Cross multiply
134,155.20x = 201,232.80 × 71,947.20 - Step 4: Simplify right side
134,155.20x = 14,478,136,508.16 - Step 5: Solve for x
x = 14,478,136,508.16/134,155.20 - Step 6: Final answer
x = 107,920.80
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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.