Finding the Fourth Proportional to 135,279.60, 202,919.40 and 93,289.20
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Solution
The fourth proportional to 135,279.60, 202,919.40 and 93,289.20 is: 139,933.80
Step by Step Solution
- Step 1: Write the proportion equation
135,279.60 : 202,919.40 = 93,289.20 : x - Step 2: Convert to fraction form
135,279.60/202,919.40 = 93,289.20/x - Step 3: Cross multiply
135,279.60x = 202,919.40 × 93,289.20 - Step 4: Simplify right side
135,279.60x = 18,930,188,490.48 - Step 5: Solve for x
x = 18,930,188,490.48/135,279.60 - Step 6: Final answer
x = 139,933.80
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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.