Finding the Fourth Proportional to 121,385.06, 181,589.73 and 104,921.81
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Solution
The fourth proportional to 121,385.06, 181,589.73 and 104,921.81 is: 156,961.02
Step by Step Solution
- Step 1: Write the proportion equation
121,385.06 : 181,589.73 = 104,921.81 : x - Step 2: Convert to fraction form
121,385.06/181,589.73 = 104,921.81/x - Step 3: Cross multiply
121,385.06x = 181,589.73 × 104,921.81 - Step 4: Simplify right side
121,385.06x = 19,052,723,149.01 - Step 5: Solve for x
x = 19,052,723,149.01/121,385.06 - Step 6: Final answer
x = 156,961.02
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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.