Finding the Fourth Proportional to 135,472.98, 203,135.40 and 107,572.26
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Solution
The fourth proportional to 135,472.98, 203,135.40 and 107,572.26 is: 161,299.57
Step by Step Solution
- Step 1: Write the proportion equation
135,472.98 : 203,135.40 = 107,572.26 : x - Step 2: Convert to fraction form
135,472.98/203,135.40 = 107,572.26/x - Step 3: Cross multiply
135,472.98x = 203,135.40 × 107,572.26 - Step 4: Simplify right side
135,472.98x = 21,851,734,064.00 - Step 5: Solve for x
x = 21,851,734,064.00/135,472.98 - Step 6: Final answer
x = 161,299.57
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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.