Finding the Fourth Proportional to 135,048.60, 202,281.30 and 87,809.40
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Solution
The fourth proportional to 135,048.60, 202,281.30 and 87,809.40 is: 131,524.50
Step by Step Solution
- Step 1: Write the proportion equation
135,048.60 : 202,281.30 = 87,809.40 : x - Step 2: Convert to fraction form
135,048.60/202,281.30 = 87,809.40/x - Step 3: Cross multiply
135,048.60x = 202,281.30 × 87,809.40 - Step 4: Simplify right side
135,048.60x = 17,762,199,584.22 - Step 5: Solve for x
x = 17,762,199,584.22/135,048.60 - Step 6: Final answer
x = 131,524.50
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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.