Finding the Fourth Proportional to 99,964.08, 149,916.96 and 47,359.44
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Solution
The fourth proportional to 99,964.08, 149,916.96 and 47,359.44 is: 71,025.35
Step by Step Solution
- Step 1: Write the proportion equation
99,964.08 : 149,916.96 = 47,359.44 : x - Step 2: Convert to fraction form
99,964.08/149,916.96 = 47,359.44/x - Step 3: Cross multiply
99,964.08x = 149,916.96 × 47,359.44 - Step 4: Simplify right side
99,964.08x = 7,099,983,272.10 - Step 5: Solve for x
x = 7,099,983,272.10/99,964.08 - Step 6: Final answer
x = 71,025.35
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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.