Finding the Fourth Proportional to 99,436.21, 149,167.98 and 36,248.31
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Solution
The fourth proportional to 99,436.21, 149,167.98 and 36,248.31 is: 54,377.45
Step by Step Solution
- Step 1: Write the proportion equation
99,436.21 : 149,167.98 = 36,248.31 : x - Step 2: Convert to fraction form
99,436.21/149,167.98 = 36,248.31/x - Step 3: Cross multiply
99,436.21x = 149,167.98 × 36,248.31 - Step 4: Simplify right side
99,436.21x = 5,407,087,181.11 - Step 5: Solve for x
x = 5,407,087,181.11/99,436.21 - Step 6: Final answer
x = 54,377.45
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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.