Finding the Fourth Proportional to 135,991.48, 203,987.19 and 42,497.23
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Solution
The fourth proportional to 135,991.48, 203,987.19 and 42,497.23 is: 63,745.84
Step by Step Solution
- Step 1: Write the proportion equation
135,991.48 : 203,987.19 = 42,497.23 : x - Step 2: Convert to fraction form
135,991.48/203,987.19 = 42,497.23/x - Step 3: Cross multiply
135,991.48x = 203,987.19 × 42,497.23 - Step 4: Simplify right side
135,991.48x = 8,668,890,530.48 - Step 5: Solve for x
x = 8,668,890,530.48/135,991.48 - Step 6: Final answer
x = 63,745.84
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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.