Finding the Fourth Proportional to 90,251.36, 135,229.08 and 63,908.80
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Solution
The fourth proportional to 90,251.36, 135,229.08 and 63,908.80 is: 95,758.43
Step by Step Solution
- Step 1: Write the proportion equation
90,251.36 : 135,229.08 = 63,908.80 : x - Step 2: Convert to fraction form
90,251.36/135,229.08 = 63,908.80/x - Step 3: Cross multiply
90,251.36x = 135,229.08 × 63,908.80 - Step 4: Simplify right side
90,251.36x = 8,642,328,227.90 - Step 5: Solve for x
x = 8,642,328,227.90/90,251.36 - Step 6: Final answer
x = 95,758.43
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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.