Finding the Fourth Proportional to 99,567.18, 149,235.21 and 40,329.18
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Solution
The fourth proportional to 99,567.18, 149,235.21 and 40,329.18 is: 60,446.96
Step by Step Solution
- Step 1: Write the proportion equation
99,567.18 : 149,235.21 = 40,329.18 : x - Step 2: Convert to fraction form
99,567.18/149,235.21 = 40,329.18/x - Step 3: Cross multiply
99,567.18x = 149,235.21 × 40,329.18 - Step 4: Simplify right side
99,567.18x = 6,018,533,646.43 - Step 5: Solve for x
x = 6,018,533,646.43/99,567.18 - Step 6: Final answer
x = 60,446.96
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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.