Finding the Fourth Proportional to 129,192.91, 193,705.99 and 61,688.41
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Solution
The fourth proportional to 129,192.91, 193,705.99 and 61,688.41 is: 92,492.80
Step by Step Solution
- Step 1: Write the proportion equation
129,192.91 : 193,705.99 = 61,688.41 : x - Step 2: Convert to fraction form
129,192.91/193,705.99 = 61,688.41/x - Step 3: Cross multiply
129,192.91x = 193,705.99 × 61,688.41 - Step 4: Simplify right side
129,192.91x = 11,949,414,530.58 - Step 5: Solve for x
x = 11,949,414,530.58/129,192.91 - Step 6: Final answer
x = 92,492.80
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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.