Finding the Fourth Proportional to 135,651.84, 203,477.12 and 42,157.44
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Solution
The fourth proportional to 135,651.84, 203,477.12 and 42,157.44 is: 63,235.96
Step by Step Solution
- Step 1: Write the proportion equation
135,651.84 : 203,477.12 = 42,157.44 : x - Step 2: Convert to fraction form
135,651.84/203,477.12 = 42,157.44/x - Step 3: Cross multiply
135,651.84x = 203,477.12 × 42,157.44 - Step 4: Simplify right side
135,651.84x = 8,578,074,477.77 - Step 5: Solve for x
x = 8,578,074,477.77/135,651.84 - Step 6: Final answer
x = 63,235.96
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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.