Finding the Fourth Proportional to 134,836.70, 202,192.47 and 78,692.99
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Solution
The fourth proportional to 134,836.70, 202,192.47 and 78,692.99 is: 118,002.96
Step by Step Solution
- Step 1: Write the proportion equation
134,836.70 : 202,192.47 = 78,692.99 : x - Step 2: Convert to fraction form
134,836.70/202,192.47 = 78,692.99/x - Step 3: Cross multiply
134,836.70x = 202,192.47 × 78,692.99 - Step 4: Simplify right side
134,836.70x = 15,911,129,008.82 - Step 5: Solve for x
x = 15,911,129,008.82/134,836.70 - Step 6: Final answer
x = 118,002.96
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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.