Finding the Fourth Proportional to 135,065.60, 202,306.80 and 87,826.40
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Solution
The fourth proportional to 135,065.60, 202,306.80 and 87,826.40 is: 131,549.99
Step by Step Solution
- Step 1: Write the proportion equation
135,065.60 : 202,306.80 = 87,826.40 : x - Step 2: Convert to fraction form
135,065.60/202,306.80 = 87,826.40/x - Step 3: Cross multiply
135,065.60x = 202,306.80 × 87,826.40 - Step 4: Simplify right side
135,065.60x = 17,767,877,939.52 - Step 5: Solve for x
x = 17,767,877,939.52/135,065.60 - Step 6: Final answer
x = 131,549.99
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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.