Finding the Fourth Proportional to 181,833.12, 272,816.64 and 76,641.12
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Solution
The fourth proportional to 181,833.12, 272,816.64 and 76,641.12 is: 114,989.90
Step by Step Solution
- Step 1: Write the proportion equation
181,833.12 : 272,816.64 = 76,641.12 : x - Step 2: Convert to fraction form
181,833.12/272,816.64 = 76,641.12/x - Step 3: Cross multiply
181,833.12x = 272,816.64 × 76,641.12 - Step 4: Simplify right side
181,833.12x = 20,908,972,844.24 - Step 5: Solve for x
x = 20,908,972,844.24/181,833.12 - Step 6: Final answer
x = 114,989.90
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1.5x scale
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.