Finding the Fourth Proportional to 133,115.84, 183,692.67 and 72,685.58
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Solution
The fourth proportional to 133,115.84, 183,692.67 and 72,685.58 is: 100,302.17
Step by Step Solution
- Step 1: Write the proportion equation
133,115.84 : 183,692.67 = 72,685.58 : x - Step 2: Convert to fraction form
133,115.84/183,692.67 = 72,685.58/x - Step 3: Cross multiply
133,115.84x = 183,692.67 × 72,685.58 - Step 4: Simplify right side
133,115.84x = 13,351,807,342.24 - Step 5: Solve for x
x = 13,351,807,342.24/133,115.84 - Step 6: Final answer
x = 100,302.17
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.