Finding the Fourth Proportional to 135,605.80, 203,408.70 and 37,109.80
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Solution
The fourth proportional to 135,605.80, 203,408.70 and 37,109.80 is: 55,664.70
Step by Step Solution
- Step 1: Write the proportion equation
135,605.80 : 203,408.70 = 37,109.80 : x - Step 2: Convert to fraction form
135,605.80/203,408.70 = 37,109.80/x - Step 3: Cross multiply
135,605.80x = 203,408.70 × 37,109.80 - Step 4: Simplify right side
135,605.80x = 7,548,456,175.26 - Step 5: Solve for x
x = 7,548,456,175.26/135,605.80 - Step 6: Final answer
x = 55,664.70
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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.