Finding the Fourth Proportional to 112,509.86, 168,847.83 and 53,345.75
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Solution
The fourth proportional to 112,509.86, 168,847.83 and 53,345.75 is: 80,057.99
Step by Step Solution
- Step 1: Write the proportion equation
112,509.86 : 168,847.83 = 53,345.75 : x - Step 2: Convert to fraction form
112,509.86/168,847.83 = 53,345.75/x - Step 3: Cross multiply
112,509.86x = 168,847.83 × 53,345.75 - Step 4: Simplify right side
112,509.86x = 9,007,313,282.98 - Step 5: Solve for x
x = 9,007,313,282.98/112,509.86 - Step 6: Final answer
x = 80,057.99
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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.