Finding the Fourth Proportional to 138,926.53, 208,168.36 and 88,965.53
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Solution
The fourth proportional to 138,926.53, 208,168.36 and 88,965.53 is: 133,306.49
Step by Step Solution
- Step 1: Write the proportion equation
138,926.53 : 208,168.36 = 88,965.53 : x - Step 2: Convert to fraction form
138,926.53/208,168.36 = 88,965.53/x - Step 3: Cross multiply
138,926.53x = 208,168.36 × 88,965.53 - Step 4: Simplify right side
138,926.53x = 18,519,807,213.38 - Step 5: Solve for x
x = 18,519,807,213.38/138,926.53 - Step 6: Final answer
x = 133,306.49
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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.