Finding the Fourth Proportional to 135,089.58, 202,692.69 and 72,747.66
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Solution
The fourth proportional to 135,089.58, 202,692.69 and 72,747.66 is: 109,152.90
Step by Step Solution
- Step 1: Write the proportion equation
135,089.58 : 202,692.69 = 72,747.66 : x - Step 2: Convert to fraction form
135,089.58/202,692.69 = 72,747.66/x - Step 3: Cross multiply
135,089.58x = 202,692.69 × 72,747.66 - Step 4: Simplify right side
135,089.58x = 14,745,418,896.61 - Step 5: Solve for x
x = 14,745,418,896.61/135,089.58 - Step 6: Final answer
x = 109,152.90
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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.