Finding the Fourth Proportional to 131,800.84, 181,885.67 and 71,371.53
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Solution
The fourth proportional to 131,800.84, 181,885.67 and 71,371.53 is: 98,492.99
Step by Step Solution
- Step 1: Write the proportion equation
131,800.84 : 181,885.67 = 71,371.53 : x - Step 2: Convert to fraction form
131,800.84/181,885.67 = 71,371.53/x - Step 3: Cross multiply
131,800.84x = 181,885.67 × 71,371.53 - Step 4: Simplify right side
131,800.84x = 12,981,458,463.76 - Step 5: Solve for x
x = 12,981,458,463.76/131,800.84 - Step 6: Final answer
x = 98,492.99
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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.