Finding the Fourth Proportional to 135,026.60, 202,539.90 and 84,944.30
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Solution
The fourth proportional to 135,026.60, 202,539.90 and 84,944.30 is: 127,416.45
Step by Step Solution
- Step 1: Write the proportion equation
135,026.60 : 202,539.90 = 84,944.30 : x - Step 2: Convert to fraction form
135,026.60/202,539.90 = 84,944.30/x - Step 3: Cross multiply
135,026.60x = 202,539.90 × 84,944.30 - Step 4: Simplify right side
135,026.60x = 17,204,610,027.57 - Step 5: Solve for x
x = 17,204,610,027.57/135,026.60 - Step 6: Final answer
x = 127,416.45
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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.